list of websites for research papers

28 Best Academic Search Engines That make your research easier

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If you’re a researcher or scholar, you know that conducting effective online research is a critical part of your job. And if you’re like most people, you’re always on the lookout for new and better ways to do it. 

I’m sure you are familiar with some research databases. But, top researchers keep an open mind and are always looking for inspiration in unexpected places. 

This article aims to give you an edge over researchers that rely mainly on Google for their entire research process.

Our list of 28 academic search engines will start with the more familiar to less.

Table of Contents

#1. Google Scholar

Google Scholar is an academic search engine that indexes the full text or metadata of scholarly literature across an array of publishing formats and disciplines.

Great for academic research, you can use Google Scholar to find articles from academic journals, conference proceedings, theses, and dissertations. The results returned by Google Scholar are typically more relevant and reliable than those from regular search engines like Google.

Tip: You can restrict your results to peer-reviewed articles only by clicking on the “Scholarly”

• Scholarly results are typically more relevant and reliable than those from regular search engines like Google.
• You can restrict your results to peer-reviewed articles only by clicking on the “Scholarly” tab.
• Google Scholar database Coverage is extensive, with approx. 200 million articles indexed.
• Abstracts are available for most articles.
• Related articles are shown, as well as the number of times an article has been cited.
• Links to full text are available for many articles.
• Abstracts are only a snippet of the full article, so you might need to do additional searching to get the full information you need.
• Not all articles are available in full text.

Google Scholar is completely free.

#2. ERIC (Education Resources Information Center) 

ERIC (short for educational resources information center) is a great academic search engine that focuses on education-related literature. It is sponsored by the U.S. Department of Education and produced by the Institute of Education Sciences. 

ERIC indexes over a million articles, reports, conference papers, and other resources on all aspects of education from early childhood to higher education. So, search results are more relevant to Education on ERIC. 

• Extensive coverage: ERIC indexes over a million articles, reports, and other resources on all aspects of education from early childhood to higher education.
• You can limit your results to peer-reviewed journals by clicking on the “Peer-Reviewed” tab.
• Great search engine for educators, as abstracts are available for most articles.

ERIC is a free online database of education-related literature. 

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#3. Wolfram Alpha

Wolfram Alpha is a “computational knowledge engine” that can answer factual questions posed in natural language. It can be a useful search tool. 

Type in a question like “What is the square root of 64?” or “What is the boiling point of water?” and Wolfram Alpha will give you an answer.

Wolfram Alpha can also be used to find academic articles. Just type in your keywords and Wolfram Alpha will generate a list of academic articles that match your query.

Tip: You can restrict your results to peer-reviewed journals by clicking on the “Scholarly” tab.

• Can answer factual questions posed in natural language.
• Can be used to find academic articles.
• Results are ranked by relevance.
• Results can be overwhelming, so it’s important to narrow down your search criteria as much as possible.
• The experience feels a bit more structured but it could also be a bit restrictive

Wolfram Alpha offers a few pricing options, including a “Pro” subscription that gives you access to additional features, such as the ability to create custom reports. You can also purchase individual articles or download them for offline use.

Pro costs $5.49 and Pro Premium costs $9.99

#4. iSEEK Education 

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iSEEK is a search engine targeting students, teachers, administrators, and caregiver. It’s designed to be safe with editor-reviewed content.

iSEEK Education also includes a “Cited by” feature which shows you how often an article has been cited by other researchers.

• Editor-reviewed content.
• “Cited by” feature shows how often an article has been cited by other researchers.
• Limited to academic content.
• Doesn’t have the breadth of coverage that some of the other academic search engines have.

iSEEK Education is free to use.

#5. BASE (Bielefeld Academic Search Engine)

BASE is hosted at Bielefeld University in Germany and that’s where it name stems from (Bielefeld Academic Search Engine). 

Known as “one of the most comprehensive academic web search engines,” it contains over 100 million documents from 4,000 different sources. 

Users can narrow their search using the advanced search option, so regardless of whether you need a book, a review, a lecture, a video or a thesis, BASE has what you need.

BASE indexes academic articles from a variety of disciplines, including the arts, humanities, social sciences, and natural sciences.

• One of the world’s most voluminous search engines, 
• Indexes academic articles from a variety of disciplines, especially for academic web resources
• Includes an “Advanced Search” feature that lets you restrict your results to peer-reviewed journals.
• Doesn’t include abstracts for most articles.
• Doesn’t have related articles, references, cited by

BASE is free to use.

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CORE is an academic search engine that focuses on open access research papers. A link to the full text PDF or complete text web page is supplied for each search result. It’s academic search engine dedicated to open access research papers.

• Focused on open access research papers.
• Links to full text PDF or complete text web page are supplied for each search result.
• Export formats include BibTeX, Endnote, RefWorks, Zotero.
• Coverage is limited to open access research papers.
• No abstracts are available for most articles.
• No related articles, references, or cited by features.

CORE is free to use.

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#7. Science.gov

Science.gov is a search engine developed and managed by the United States government. It includes results from a variety of scientific databases, including NASA, EPA, USGS, and NIST. 

US students are more likely to have early exposure to this tool for scholarly research. 

• Coverage from a variety of scientific databases (200 million articles and reports).
• Links to full text are available for some articles.

Science.gov is free to use.

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#8. Semantic Scholar

Semantic Scholar is a recent entrant to the field. Its goal is to provide more relevant and effective search results via artificial intelligence-powered methods that detect hidden relationships and connections between research topics.

• Powered by artificial intelligence, which enhances search results.
• Covers a large number of academic articles (approx. 40 million).
• Related articles, references, and cited by features are all included.
• Links to full text are available for most articles.

Semantic Scholar is free to use.

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#9. RefSeek

RefSeek searches more than five billion documents, including web pages, books, encyclopedias, journals, and newspapers.

This is one of the free search engines that feels like Yahoo with a massive directory. It could be good when you are just looking for research ideas from unexpected angles. It could lead you to some other database that you might not know such as the CIA The World Factbook, which is a great reference tool.

• Searches more than five billion documents.
• The Documents tab is very focused on research papers and easy to use.
• Results can be filtered by date, type of document, and language.
• Good source for free academic articles, open access journals, and technical reports.
• The navigation and user experience is very dated even to millenials…
• It requires more than 3 clicks to dig up interesting references (which is how it could lead to you something beyond the 1st page of Google)
• The top part of the results are ALL ads (well… it’s free to use)

RefSeek is free to use.

#10. ResearchGate 

A mixture of social networking site + forum + content databases where researchers can build their profile, share research papers, and interact with one another.

Although it is not an academic search engine that goes outside of its site, ResearchGate ‘s library of works offers an excellent choice for any curious scholar.

There are more than 100 million publications available on the site from over 11 million researchers. It is possible to search by publication, data, and author, as well as to ask the researchers questions. 

• A great place to find research papers and researchers.
• Can follow other researchers and get updates when they share new papers or make changes to their profile.
• The network effect can be helpful in finding people who have expertise in a particular topic.
• Interface is not as user friendly
• Can be overwhelming when trying to find relevant papers.
• Some papers are behind a paywall.

ResearchGate is free to use.

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#11. DataONE Search (formerly CiteULike) 

A social networking site for academics who want to share and discover academic articles and papers.

• A great place to find academic papers that have been shared by other academics.
• Some papers are behind a paywall

CiteULike is free to use.

#12. DataElixir 

DataElixir is deigned to help you find, understand and use data. It includes a curated list of the best open datasets, tools and resources for data science.

• Dedicated resource for finding open data sets, tools, and resources for data science.
• The website is easy to navigate.
• The content is updated regularly
• The resources are grouped by category.
• Not all of the resources are applicable to academic research.
• Some of the content is outdated.

DataElixir is free to use.

#13. LazyScholar – browser extension

LazyScholar is a free browser plugin that helps you discover free academic full texts, metrics, and instant citation and sharing links. Lazy Scholar is created Colby Vorland, a postdoctoral fellow at Indiana University.

• It can integrate with your library to find full texts even when you’re off-campus.
• Saves your history and provides an interface to find it.
• A pre-formed citation is availlable in over 900 citation styles.
• Can recommend you topics and scans new PubMed listings to suggest new papers
• Results can be a bit hit or miss

LazyScholar is free to use.

#14. CiteseerX – digital library from PenState

CiteseerX is a digital library stores and indexes research articles in Computer Science and related fields. The site has a robust search engine that allows you to filter results by date, author.

• Searches a large number of academic papers.
• Results can be filtered by date, author, and topic.
• The website is easy to use.
• You can create an account and save your searches for future reference.

CiteseerX is free to use.

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#15. The Lens – patents search 

The Lens or the Patent Lens is an online patent and scholarly literature search facility, provided by Cambia, an Australia-based non-profit organization.

• Searches for a large number of academic papers.

The price range can be free for non-profit use to $5,000 for commercial enterprise.

#16. Fatcat – wiki for bibliographic catalog 

Fatcat is an open bibliographic catalog of written works. The scope of works is somewhat flexible, with a focus on published research outputs like journal articles, pre-prints, and conference proceedings. Records are collaboratively editable, versioned, available in bulk form, and include URL-agnostic file-level metadata.

• Open source and collaborative
• You can be part of the community that is very focused on its mission
• The archival file-level metadata (verified digests and long-term copies) is a great feature.
• Could prove to be another rabbit hole
• People either love or hate the text-only interface

#17. Lexis Web – Legal database

Are you researching legal topics? You can turn to Lexis Web for any law-related questions you may have. The results are drawn from legal sites and can be filtered based on criteria such as news, blogs, government, and commercial. Additionally, users can filter results by jurisdiction, practice area, source and file format.

• Results are drawn from legal sites.
• Filters are available based on criteria such as news, blogs, government, and commercial.
• Users can filter results by jurisdiction, practice area, source and file format.
• Not all law-related questions will be answered by this search engine.
• Coverage is limited to legal sites only.

Lexis Web is free for up to three searches per day. After that, a subscription is required.

#18. Infotopia – part of the VLRC family

Infotopia touts itself as an “alternative to Google safe search.” Scholarly book results are curated by librarians, teachers, and other educational workers. Users can select from a range of topics such as art, health, and science and technology, and then see a list of resources pertaining to the topic. 

Consequently, if you aren’t able to find what you are looking for within Infotopia’s pages, you will probably find it on one of its many suggested websites.

#19. Virtual Learning Resources Center

Virtual Learning Resources Center (VLRC) is an academic search engine that features thousands of academic sites chosen by educators and librarians worldwide. Using an index generated from a research portal, university, and library internet subject guides, students and instructors can find current, authoritative information for school.

• Thousands of academic information websites indexed by it. You will also be able to get more refined results with custom Google search, which will speed up your research. 
• Many people consider VLRC as one of the best free search engines to start looking for research material. 
• TeachThought rated the Virtual LRC #3 in it’s list of 100 Search Engines For Academic Research
• More relevant to education 
• More relevant to students

Powered by Google Custom Search Engine (CSE), Jurn is a free online search engine for accessing and downloading free full-text scholarly papers. It was created by David Haden in a public open beta version in February 2009, initially for locating open access electronic journal articles in the arts and humanities.

After the indexing process was completed, a website containing additional public directories of web links to indexed publications was introduced in mid-2009. The Jurn search service and directory has been regularly modified and cleaned since then.

• A great resource for finding academic papers that are behind paywalls.
• The content is updated regularly.uren

Jurn is free to use.

#21. WorldWideScience

The Office of Scientific and Technical Information—a branch of the Office of Science within the U.S. Department of Energy—hosts the portal WorldWideScience , which has dubbed itself “The Global Science Gateway.”

Over 70 countries’ databases are used on the website. When a user enters a query, it contacts databases from all across the world and shows results in both English and translated journals and academic resources.

• Results can be filtered by language and type of resource
• Interface is easy to use
• Contains both academic journal articles and translated academic resources 
• The website can be difficult to navigate.

WorldWideScience is free to use.

#22. Google Books

A user can browse thousands of books on Google Books, from popular titles to old titles, to find pages that include their search terms. You can look through pages, read online reviews, and find out where to buy a hard copy once you find the book you are interested in.

#23. DOAJ (Directory of Open Access Journals)

DOAJ is a free search engine for scientific and scholarly materials. It is a searchable database with over 8,000 peer-reviewed research papers organized by subject. It’s one of the most comprehensive libraries of scientific and scholarly resources, with over 8,000 journals available on a variety of themes.

#24. Baidu Scholar

Baidu Xueshu (Academic) is the Chinese version for Google Scholar. IDU Scholar indexes academic papers from a variety of disciplines in both Chinese and English.

• Articles are available in full text PDF.
• Covers a variety of academic disciplines.
• No abstracts are available for most articles, but summaries are provided for some.
• A great portal that takes you to different specialized research platform
• You need to be able to read Chinese to use the site
• Since 2021 there is a rise of focus on China and the Chinese Communist Party

Baidu Scholar is free to use.

#25. PubMed Central

PubMed is a free search engine that provides references and abstracts for medical, life sciences, and biomedical topics.

If you’re studying anything related to healthcare or science, this site is perfect. PublicMed Central is operated by the National Center for Biotechnology Information, a division of the U.S. National Library of Medicine. It contains more than 3 million full-text journal articles. 

It’s similar to PubMed Health, which focuses on health-related research and includes abstracts and citations to over 26 million articles.

#26. MEDLINE®

MEDLINE® is a paid subscription database for life sciences and biomedicine that includes more than 28 million citations to journal articles. For finding reliable, carefully chosen health information, Medline Plus provides a powerful search tool and even a dictionary.

• A great database for life sciences and biomedicine.
• Contains more than 28 million references to journal articles.
• References can be filtered by date, type of document, and language.
• The database is expensive to access.
• Some people find it difficult to navigate and find what they are looking for.

MEDLINE is not free to use ( pricing information ).

Defunct Academic Search Engines 

#27. microsoft academic  .

Microsoft Academic

Microsoft Academic Search seemed to be a failure from the beginning. It ended in 2012, then re-launched in 2016 as Microsoft Academic. It provides the researcher with the opportunity to search academic publications,

Microsoft Academic used to be the second-largest academic search engine after Google Scholar. Microsoft Academic provides a wealth of data for free, but Microsoft has announced that it will shut Microsoft Academic down in by 2022. 

#28. Scizzle

Designed to help researchers stay on top of the literature by setting up email alerts, based on key terms, for newspapers.

Unfortunately, academic search engines come and go. These are two that are no longer available.

Final Thoughts

There are many academic search engines that can help researchers and scholars find the information they need. This list provides a variety of options, starting with more familiar engines and moving on to less well-known ones. 

Keeping an open mind and exploring different sources is essential for conducting effective online research. With so much information at our fingertips, it’s important to make sure we’re using the best tools available to us.

Tell us in the comment below which academic search engine have you not heard of? Which database do you think we should add? What database do your professional societies use? What are the most useful academic websites for research in your opinion?

There is more.

Check out our other articles on the Best Academic Tools Series for Research below.

• Learn how to get more done with these Academic Writing Tools  
• Learn how to proofread your work with these Proofreading Tools
• Learn how to broaden your research landscape with these Academic Search Engines
• Learn how to manage multiple research projects with these Project Management Tools
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• Learn how get more insights from important conversations and interviews with Transcription Tools
• Learn how to manage the ever-growing list of references with these Reference Management Software
• Learn how to double your productivity with literature reviews with these AI-Based Summary Generators
• Learn how to build and develop your audience with these Academic Social Network Sites
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10 thoughts on “28 Best Academic Search Engines That make your research easier”

Thank you so much Joannah..I have found this information useful to me as librarian in an academic library

You are welcome! We are happy to hear that!

Thank You Team, for providing a comprehensive list of academic search engines that can help make research easier for students and scholars. The variety of search engines included offers a range of options for finding scholarly articles, journals, and other academic resources. The article also provides a brief summary of each search engine’s features, which helps in determining which one is the best fit for a specific research topic. Overall, this article is a valuable resource for anyone looking for a quick and easy way to access a wealth of academic information.

Thank you for taking the time to share your feedback with us. We are delighted to hear that you found our list of academic search engines helpful in making research easier for students and scholars. We understand the importance of having a variety of options when it comes to finding scholarly articles, journals, and other academic resources, and we strive to provide a comprehensive list of resources to meet those needs.

We are glad that you found the brief summary of each search engine’s features helpful in determining which one is the best fit for a specific research topic. Our goal is to make it easy for our readers to access valuable academic information and we’re glad that we were able to achieve that for you.

We appreciate your support and thank you for your kind words. We will continue to provide valuable resources for students and researchers in the future. Please let us know if you have any further questions or suggestions.

No more questions Thank You

I cannot thank you enough!!! thanks alot 🙂

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Hi Joannah! Here’s another one you may want to add! Expontum ( https://www.expontum.com/ ) – Helps researchers quickly find knowledge gaps and identify what research projects have been completed before. Thanks!

Expontum – Helps researchers quickly find knowledge gaps and identify what research projects have been completed before. Expontum is free, open access, and available to all globally with no paid versions of the site. Automated processes scan research article information 24/7 so this website is constantly updating. By looking at over 35 million research publications (240 million by the end of 2023), the site has 146 million tagged research subjects and 122 million tagged research attributes. Learn more about methodology and sources on the Expontum About Page ( https://www.expontum.com/about.php )

Hey Ryan, I clicked and checked your site and thought it was very relevant to our reader. Thank you for sharing. And, we will be reviewing your site soon.

Sounds good! Thanks, Joannah!

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100 Best Websites to Find Research Articles, Papers & Journals

In the vast landscape of digital information, access to credible academic resources is indispensable for the curious mind. Navigating through a myriad of websites to find scholarly journals, articles, and books can be a daunting task. To aid in this quest for knowledge, we’ve curated a list of the top 100 websites renowned for their repository of academic treasures . These platforms serve as indispensable tools for researchers, students, and enthusiasts seeking reputable and diverse scholarly materials. From comprehensive databases to user-friendly interfaces, each website stands as a testament to the democratization of education and the evolution of digital learning.

Join us on this expedition through the virtual libraries that serve as gateways to a world of intellectual richness and exploration.

1. Google Scholar

As a widely-used academic search engine, Google Scholar provides access to scholarly articles, theses, books, and conference papers across various disciplines. Its user-friendly interface allows researchers to explore a vast database of scholarly literature, offering citations, abstracts, and sometimes even full-text access. Its citation tracking feature enables scholars to follow research trends and connect with related publications. With its comprehensive coverage and indexing of academic sources, Google Scholar is an indispensable tool for academics, students, and researchers seeking reliable and diverse scholarly content.

2. ScienceDirect

ScienceDirect is a comprehensive platform offering access to a vast collection of academic journals, articles, and books across various scientific disciplines. With a user-friendly interface, it provides researchers and students with a plethora of scholarly resources in fields like science, technology, medicine, and social sciences. ScienceDirect grants access to a multitude of peer-reviewed journals, research articles, book chapters, and reference works. Its advanced search functionalities and intuitive navigation streamline the process of locating relevant literature for academic pursuits.

3. ReaserchGate

As a prominent academic networking platform, ResearchGate fosters collaboration among researchers globally. Offering access to a vast repository of academic journals, articles, and books across disciplines, it serves as a hub for scholarly communication. Researchers can connect, share findings, and access a diverse range of publications, facilitating knowledge exchange and collaborative efforts in advancing scientific endeavors.

4. Springerlink

SpringerLink stands as a prominent platform for accessing academic journals, books, and reference works across disciplines such as science, technology, medicine, and the social sciences. Offering a vast collection of peer-reviewed content from renowned publishers, SpringerLink provides access to high-quality research articles, book chapters, and reference materials. Its user-friendly interface facilitates easy navigation and searchability, making it a valuable resource for scholars, researchers, and students seeking in-depth academic literature and cutting-edge research in various fields.

VET-Bib serves as a specialized repository for veterinary science-related literature, catering to professionals, researchers, and students in the field. This platform offers a curated collection of academic journals, articles, and books specific to veterinary medicine, animal health, and related disciplines. VET-Bib facilitates access to a diverse range of scholarly resources, including research papers, clinical studies, textbooks, and reports, contributing significantly to advancements in veterinary sciences.

6. Academia.edu

Academia.edu is a social networking platform designed for academics to share and access scholarly papers, articles, and research. It allows researchers to create profiles, upload their work, and connect with peers worldwide, fostering collaboration and knowledge exchange. Users can explore a wide range of academic disciplines, access papers, follow scholars, and track research interests. Academia.edu serves as a hub for disseminating research, accessing scholarly content, and networking within the academic community.

7. arXiv.org e-Print Archive

arXiv.org is a preprint repository primarily focused on physics, mathematics, computer science, quantitative biology, quantitative finance, and statistics. It hosts a vast collection of research papers, providing early access to cutting-edge findings before formal publication. Researchers worldwide contribute to arXiv, sharing their work and enabling the dissemination of crucial discoveries within these disciplines. Its open-access nature encourages collaboration, facilitates rapid dissemination of research, and serves as a vital resource for scholars and students alike.

8. Astrophysics Data System

The Astrophysics Data System (ADS) stands as an authoritative digital library providing access to a wealth of literature in astrophysics, astronomy, and related sciences. ADS serves as a comprehensive platform offering academic journals, articles, conference proceedings, and data sets relevant to the field. Its sophisticated search tools enable researchers to explore astronomical literature, access preprints, and gather valuable resources for their scholarly inquiries.

9. Google Books

Google Books offers an extensive and diverse collection of digitized books, providing access to a wide range of academic literature across multiple disciplines. While not exclusively academic, Google Books encompasses a significant repository of scholarly works, allowing users to preview, purchase, or access full texts of books relevant to their research. Its search feature allows users to explore content, view excerpts, and locate academic publications, making it a valuable resource for scholars, researchers, and students.

10. ProQuest

An extensive digital library offering access to a vast array of scholarly journals, articles, and books across multiple disciplines. ProQuest’s user-friendly platform facilitates research, providing comprehensive resources for academics, researchers, and students worldwide. With diverse content, including historical archives, current publications, and multimedia resources, it’s a go-to destination for in-depth exploration and reliable sources.

11. Education Resources Information Center (ERIC)

ERIC is a comprehensive platform offering an array of educational resources, research articles, and publications. It specializes in curating scholarly content related to education, spanning diverse topics from early childhood to higher education. ERIC acts as a centralized hub for educators, researchers, and policymakers, providing access to peer-reviewed articles, reports, and conference papers. With its extensive database, ERIC facilitates exploration and dissemination of knowledge, fostering advancements in educational practices and policies.

12. Microsoft Academic Search

Microsoft Academic Search is a dynamic platform dedicated to facilitating academic exploration and research discovery. Leveraging advanced algorithms and vast data sets, it offers a user-friendly interface to access scholarly articles, publications, and citations across various disciplines. This tool provides in-depth search functionalities, citation analysis, and semantic understanding, empowering researchers to navigate through a plethora of academic resources. Microsoft Academic Search encourages collaboration, knowledge sharing, and innovative scholarly pursuits by offering a robust platform for academic exploration.

13. Oxford Academic Journals Search

Oxford Academic Journals Search is a prestigious repository hosting a wide spectrum of scholarly articles and publications across multiple disciplines. Renowned for its high-quality content and authoritative contributions, it serves as a gateway to scholarly excellence. This platform offers access to esteemed journals published by Oxford University Press, encompassing diverse fields such as humanities, social sciences, science, and medicine. With its rigorous peer-review process and rich historical archive, Oxford Academic Journals Search fosters academic inquiry, knowledge dissemination, and intellectual discourse.

JSTOR is a revered digital library providing access to an extensive collection of academic journals, books, and primary sources. Catering to researchers, students, and scholars worldwide, JSTOR archives scholarly content across various disciplines, including arts, humanities, social sciences, and sciences. Known for its archival depth and user-friendly interface, JSTOR grants access to a wealth of peer-reviewed articles, books, and research materials. Its comprehensive database and interdisciplinary approach facilitate scholarly research, critical analysis, and the exploration of historical and contemporary academic literature. JSTOR remains a vital resource for academic pursuits and intellectual discovery.

15. Behavioral and Brain Sciences

Behavioral and Brain Sciences is a prestigious academic journal that publishes target articles and commentary on significant and controversial topics in psychology, neuroscience, cognitive science, and related fields. Recognized for its unique format, BBS publishes comprehensive articles accompanied by multiple commentaries from experts in the field, fostering in-depth discussions and debates on key issues. This journal serves as a platform for rigorous scientific discourse, shaping the direction of research and theory development in behavioral and brain sciences.

16. PubChem

Operated by the NCBI, PubChem stands as an extensive chemical database, offering insights into compound properties, structures, and biological activities. Its collection includes scientific articles, journals, and books relevant to chemistry, pharmacology, and life sciences. Researchers benefit from its comprehensive information on chemical compounds, aiding in drug discovery, bioinformatics, and chemical research.

PubMed serves as a comprehensive resource for accessing biomedical literature. With millions of articles from various fields like medicine, biology, and health sciences, it provides researchers, healthcare professionals, and students with a vast repository of peer-reviewed articles. Its user-friendly interface allows easy navigation through research articles, clinical studies, and reviews, making it an invaluable tool for staying updated on the latest advancements in healthcare and life sciences.

18. CiteSeerX

CiteSxeerX project is funded by the National Science Foundation, is a public integrated digital library, database, and search engine for scientific papers in chemistry. The goal of this project is to develop an intelligent search and database that provides easy access to relevant data for diverse community of users who need for chemical information.

19. Semantic Scholar

Semantic Scholar is an academic search engine that utilizes artificial intelligence methods to provide highly relevant results for journal articles. It is designed to quickly highlight the most important papers and identify the connections between them. It currently includes on computer science and biomedical publications.

20. Web of Science

Web of Science is an online subscription-based scientific citation indexing service that provides a comprehensive citation search. It gives access to multiple databases that reference cross-disciplinary research allowing in-depth exploration of specialized sub-fields within an academic or scientific discipline.

21. Analytical Abstracts

Analytical Abstracts is a literature updating service that keeps researchers and students informed of the latest developments in analytical science. It includes details of the most relevant literature presented as individual records that are easily searchable by analyte, matrix, technique and subject area.

22. Merck Index

The Merck Index is a revered compendium of chemical compounds, providing in-depth information on their properties, structures, and uses. Widely used by chemists, researchers, and students, it offers a wealth of data on chemicals, drugs, and biological substances. With over 11,000 monographs featuring precise details, including synthesis pathways and safety information, it remains an indispensable reference for understanding and researching chemical compounds and their applications.

23. MedlinePlus

MedlinePlus is an online information service created by the United States National Library of Medicine. The service provides curated consumer health information and brings together information from the National Library of Medicine, the National Institutes of Health, other U.S. government agencies, and health-related organizations.

24. Agricola

Agricola is a bibliographic database of citations to the agricultural literature created by the National Agricultural Library. The database indexes a wide variety of publications covering agriculture and its allied fields, including, animal and veterinary sciences, entomology, plant sciences, forestry, aquaculture, fisheries, and many more.

25. AGRIS: Agricultural Database

AGRIS is a global public domain database with more than 8 million structured bibliographical records on agricultural science and technology. The AGRIS Search system allows scientists, researchers to perform sophisticated searches using keywords, journal titles or names of countries, institutions, and authors.

26. WorldCat

WorldCat stands as a vast catalog of library collections worldwide, encompassing books, journals, multimedia materials, and more. It facilitates access to resources held in numerous libraries globally, allowing users to locate and borrow items beyond their local collection. Its extensive database aids researchers, scholars, and enthusiasts in discovering a broad range of academic resources, fostering collaborative research and access to diverse perspectives across various subjects and disciplines.

27. IOPscience

IOPscience serves as a leading platform for accessing scientific content in physics, engineering, and related disciplines. Hosting journals, conference proceedings, and magazines published by the Institute of Physics, it offers a trove of high-quality research articles, reviews, and cutting-edge studies. Researchers and academics benefit from its authoritative content, advanced search features, and access to vital information shaping the forefront of scientific exploration and technological advancements.

28. PLOS ONE

PLOS ONE stands as an open-access, peer-reviewed journal publishing multidisciplinary scientific research. It houses a vast repository of articles across various scientific disciplines, fostering accessibility and collaboration within the academic community. Known for its rigorous review process and commitment to transparency, PLOS ONE promotes diverse research findings and encourages innovation in scientific exploration.

A comprehensive abstract and citation database catering to scientific, technical, medical, and social sciences. Scopus offers access to an extensive collection of peer-reviewed literature, providing researchers and institutions with powerful tools for tracking, analyzing, and visualizing research trends and data. Its vast coverage and analytical features make it a vital resource in the academic community.

30. Advanced Technologies & Aerospace Database

The Advanced Technologies & Aerospace Database provides extensive coverage of advanced technology literature. It features over 26 million A&I records and more than 250 full-text titles that date back to 1962. Its topics cover aeronautics, communications, computer and IT, electronics, lasers, space sciences, telecommunications and many more.

31. Air University Library Index to Military Periodicals (AULIMP)

AULIMP specializes in curating military-centric literature, indexing journals, periodicals, and articles vital to military studies and defense. Catering to scholars, military personnel, and historians, it provides a wealth of resources covering military history, strategy, technology, and policy analysis, aiding in comprehensive research within the defense domain.

32. ACM Digital Library

Geared towards computing professionals, the ACM Digital Library hosts an extensive collection of journals, conference proceedings, and books in computer science and related fields. It offers a rich repository of cutting-edge research, enabling access to pivotal works and fostering innovation and advancement in the realm of technology and computing.

33. Project MUSE

Project MUSE offers a comprehensive digital collection of scholarly journals and books in humanities and social sciences. Recognized for its extensive coverage and user-friendly interface, it provides access to high-quality content from reputable publishers and institutions worldwide. With a focus on academic excellence, Project MUSE supports research, learning, and intellectual discovery.

34. Ulrich’s Periodicals Directory

Ulrich’s Periodicals Directory serves as an authoritative resource for information on academic journals, magazines, and other periodicals. It offers detailed bibliographic data, including publication details, peer-review status, and indexing information. Widely used by researchers, librarians, and institutions, Ulrich’s facilitates the identification and evaluation of publications, aiding in academic research and scholarly communication.

35. OAIster Database

OAIster functions as a global aggregator, collating digital resources from diverse libraries worldwide. With access to academic content spanning journals, theses, and books sourced from various repositories and institutions, it provides a comprehensive search platform across disciplines, aiding researchers in accessing a wide array of scholarly materials.

36. Beilstein Database

A renowned resource in organic chemistry, Beilstein Database aggregates exhaustive data on organic compounds, providing critical information on their properties, reactions, and synthesis methods. Researchers access a plethora of peer-reviewed articles, journals, and books, empowering scientific exploration and innovation in chemical research and development.

37. Mendeley

Mendeley, a reference manager and academic social network, empowers researchers to organize, annotate, and collaborate on research papers and articles. Its user-friendly platform enables citation management, document sharing, and networking among scholars globally. With integrated features for discovery and collaboration, Mendeley streamlines the research process and supports scholarly communication.

38. Chinese Social Science Citation Index

Chinese Social Sciences Citation Index (CSSCI) is an interdisciplinary citation index program in China. This citation database covers more than 500 Chinese academic journals of humanities and social sciences. Many Chinese universities and institutes use CSSCI as a basis for the evaluation of academic achievements and promotion.

39. Library of Congress

The Library of Congress offers an extensive collection of academic journals, articles, and books spanning diverse disciplines. As the largest library in the world, it provides access to unparalleled resources, including historical manuscripts, government publications, and research materials. With a vast digital repository, users can delve into scholarly literature, research papers, and educational resources, making it an indispensable hub for academic pursuits.

40. CiNii Articles

As a comprehensive Japanese academic database, CiNii Articles houses a diverse collection of scholarly articles, theses, and research papers spanning multiple disciplines. Drawing from Japanese academic institutions, it facilitates cross-disciplinary research, serving as a valuable resource for global knowledge dissemination.

41. PsycINFO

PsycINFO, curated by the American Psychological Association (APA), is a comprehensive database encompassing literature in psychology and related disciplines. It indexes scholarly journals, books, conference proceedings, and other resources, providing access to psychological research, behavioral sciences, and mental health literature. With its extensive coverage of peer-reviewed content, PsycINFO aids researchers, psychologists, educators, and students in accessing credible and relevant information, enabling informed analysis and understanding within the realm of psychology and associated fields.

42. Tisch Library – Journals and Articles

Tisch Library serves as a central academic resource hub at Tufts University, providing access to a vast collection of scholarly materials, including books, journals, databases, and multimedia resources. With expert librarians offering guidance and support, Tisch Library facilitates research and learning, offering access to diverse information sources and fostering a conducive environment for academic exploration.

43. OpenEdition.org

OpenEdition.org is a digital publishing platform dedicated to the humanities and social sciences. Hosting journals, books, and research content, it promotes open access to scholarly resources, fostering interdisciplinary dialogue and knowledge dissemination. With a commitment to free access and innovative publishing models, OpenEdition.org facilitates academic exchange and contributes to the democratization of knowledge.

44. Digital Library Of The Commons Repository (DLC)

DLC is a comprehensive resource housing academic works on the commons, including scholarly articles, theses, and research papers. It curates a vast collection focused on topics like environmental studies, economics, and social sciences. Users access a wealth of resources supporting interdisciplinary research on communal resources, governance, and sustainability.

45. Arts & Humanities Citation Index

The Arts & Humanities Citation Index is a citation index, with abstracting and indexing for more than 1,700 arts and humanities journals, and coverage of disciplines that includes social and natural science journals. Its subjects cover arts, humanities, language, poetry, music, classical works, history, philosophy, architecture, religion, and many more.

46. Science Citation Index

An esteemed bibliographic database, Science Citation Index, meticulously indexes scientific literature across various disciplines. It enables researchers to navigate and explore scholarly articles based on citation connections, facilitating robust literature reviews and comprehensive insights into academic trends and advancements.

47. EurekaMag Biomedical Library

Focused on the biomedical field, EurekaMag offers an extensive repository of research articles, journals, and publications. Specializing in biological and medical sciences, this library provides a wealth of knowledge for professionals, researchers, and students. Its curated collection spans diverse subfields, offering valuable insights and updates within the biomedical domain.

48. CERN Document Server (CDS)

The CERN Document Server is the institutional repository that provides acquisition, search and collaborative tools to manage collections of documents produced at CERN. This includes HEP documents, multimedia documents, bulletins, administrative documents, EU project documents and many more.

49. Open Library

Open Library stands as a digital repository, granting free access to an impressive array of academic journals, articles, and books. Its open-source platform enables users to explore a wide spectrum of scholarly content, fostering global access to educational resources. With a user-friendly interface, it supports research endeavors by offering a comprehensive collection of materials, ranging from classic literature to contemporary academic publications.

50. Ei Compendex

A pivotal resource for engineers, Ei Compendex boasts an extensive engineering database comprising journals, conference proceedings, and articles. Covering a wide array of engineering disciplines such as mechanical, civil, and electrical engineering, it serves as a gateway to cutting-edge research and advancements in the field.

Embase stands as a pivotal repository for biomedical research, housing a wide array of peer-reviewed journals, conference abstracts, and articles. Specializing in pharmacology, toxicology, and clinical medicine, it aids medical professionals and researchers in accessing crucial information for evidence-based practice and scientific exploration.

52. IEEE Xplore

A paramount platform for engineering and technology, IEEE Xplore is a treasure trove of research papers, conference proceedings, and technical articles. It hosts a plethora of resources spanning electrical engineering, computer science, and related fields, fostering innovation and knowledge dissemination among professionals and academia.

53. Social Science Research Network (SSRN)

SSRN serves as a leading platform for social sciences, offering a vast repository of preprints, working papers, and published articles. Embracing disciplines like economics, law, and humanities, SSRN facilitates scholarly collaboration and dissemination, fostering discussions and advancements in social science research.

54. The World Factbook – CIA

The World Factbook offers information on the people, history, government, economy, geography, communications, transportation, military, and transnational issues for 267 world entities. It provides maps of the major world regions, flags of the World, political maps of the World, world oceans map as well as standard time zones of the world map.

55. Europe PMC

A comprehensive platform for accessing biomedical literature, Europe PMC hosts a vast repository of academic journals, articles, and books. It offers a user-friendly interface, allowing researchers to explore a wealth of scientific content, including full-text articles, abstracts, and research papers across various disciplines within the life sciences. With powerful search capabilities and access to funding information, Europe PMC facilitates efficient navigation through a diverse collection, supporting scholars, scientists, and healthcare professionals in their quest for credible and relevant academic resources.

56. National Diet Library

Serving as Japan’s national library, the National Diet Library provides a rich assortment of academic journals, articles, and books, reflecting the country’s cultural and scholarly heritage. It encompasses an extensive collection of publications, archives, and digital resources, catering not only to researchers and scholars but also to the general public. With its emphasis on Japanese history, culture, and scholarly works, the library offers a valuable repository, fostering academic exploration and knowledge dissemination on a national scale.

57. DBLP Computer Science Bibliography

Renowned in the field of computer science, DBLP stands as a comprehensive bibliographic database, meticulously curating academic journals, articles, and books within the realm of computing. Its meticulous indexing covers a wide array of topics, including algorithms, artificial intelligence, and software engineering. Researchers benefit from its organized and structured platform, facilitating easy access to authoritative publications, conference proceedings, and scholarly contributions, making it an indispensable resource for the computer science community worldwide.

58. National Archives Catalog

As a treasure trove of historical records and government documents, the National Archives Catalog preserves the rich tapestry of the United States’ history. It serves as a gateway to a vast collection of academic journals, articles, and books, encompassing an extensive range of topics spanning politics, culture, and society. With its user-friendly interface and comprehensive search functionalities, researchers, historians, and the public can delve into primary sources, manuscripts, and official records, unraveling the nation’s past and shaping contemporary understanding.

59. University of Guelph Library

The University of Guelph Library stands as a comprehensive repository, offering an extensive collection of books, journals, and articles across diverse disciplines. It caters to the research and academic needs of students, faculty, and scholars, fostering a conducive environment for learning, exploration, and scholarly pursuits.

60. Chemical Abstracts Service (CAS)

CAS is an online source of chemical information that provides many tools such as SciFinder and tagged keywords, summaries, indexes of disclosures and structures of compounds in recently published scientific documents. CAS has over 8,000 journals, technical reports, dissertations, conference proceedings available in different languages.

61. Scientific Information Database (SID)

SID serves as an Iranian digital repository housing scholarly journals, articles, and theses across various domains. It plays a pivotal role in disseminating scientific knowledge, enabling research collaboration and providing access to valuable academic content within Iran and globally, fostering innovation and academic growth.

A leading aggregator of open-access research content, CORE collates millions of academic journals, articles, and books from various repositories and repositories globally. It offers a centralized platform, facilitating seamless access to diverse scholarly publications across multiple disciplines. Emphasizing open access, CORE champions unrestricted availability to research literature, providing researchers and students with a valuable resource for discovering scholarly works, enhancing academic exploration, and fostering collaboration. With its expansive collection and user-friendly interface, CORE stands as an essential tool for accessing credible and diverse academic resources.

63. Research Papers in Economics (RePEc)

RePEc is a collaborative effort of hundreds of volunteers to enhance the dissemination of research in economics and related sciences. The heart of the project is a decentralized bibliographic database of working papers, journal articles, books, books chapters and software components, all maintained by volunteers.

64. Book Review Index Online

Offering a comprehensive collection of book reviews, this platform serves as a valuable resource for scholars and book enthusiasts. Users gain access to extensive critiques spanning various genres and subjects, aiding in informed decision-making for academic pursuits or leisure reading. Its indexed reviews enable efficient searches and critical assessments, providing a nuanced understanding of literary works and their scholarly reception.

65. IngentaConnect

IngentaConnect provides online articles from over 30000 publications. Abstracts are free; full text is available by subscription or pay-per-view. The site is ideal for publishers looking to put their content online for the first time and increase the global visibility of their publications.

66. ASCE Library

ASCE Library is an online civil engineering database that provides the contents of peer-reviewed journals, proceedings, e-books, and standards published by the American Society of Civil Engineers. It offers free access to abstracts of academic journal articles, proceedings papers, e-books, standards, etc.

67. National Bureau of Economic Research (NBER)

Renowned for its pivotal role in economic research, NBER is a hub for high-quality academic papers and data-driven analysis. Catering to economists and policymakers, it disseminates groundbreaking research on diverse economic facets. The site offers access to a wealth of working papers, economic indicators, and conferences, fostering collaboration and innovation in the field.

Tailored for researchers in science and engineering, Inspec is an indispensable database hosting a vast collection of peer-reviewed articles, conference proceedings, and patents. Its meticulously curated content covers an array of disciplines, providing in-depth insights and cutting-edge information crucial for technological advancements and academic pursuits.

69. INSPIRE-HEP

INSPIRE-HEP is an open access digital library for the field of high energy physics. In addition to scientific papers, It provides other information like citation metrics, plots extracted from papers or internal experiment notes and tools for users to improve metadata.

70. MathSciNet Mathematical Reviews

MathSciNet is a fully searchable database with many tools designed to help navigate the mathematical sciences literature. It serves researchers and scholars in the mathematical sciences by providing peer-reviewed articles and books.

71. African Journals Online (AJOL)

AJOL is the world’s largest online library of peer-reviewed, African-published scholarly journals. With AJOL, you can browse peer-reviewed journals from Africa and download full text articles. Articles can be searched by title, authors or keywords.

72. Directory of Open Access Journals (DOAJ)

A champion of open access, DOAJ serves as a goldmine for scholarly literature, housing a wide spectrum of peer-reviewed journals across disciplines. By promoting unrestricted access to quality research, it empowers academics worldwide. Its stringent criteria ensure credibility, fostering transparency and democratizing knowledge dissemination.

73. JournalTOCs

Aiming to streamline academic research, JournalTOCs aggregates tables of contents from thousands of scholarly journals. This platform facilitates swift access to the latest articles, aiding researchers in staying updated within their areas of interest. Its user-friendly interface and customizable alerts enable efficient navigation through a plethora of scholarly content, optimizing the research process.

74. AcademicJournals.org

AcademicJournals.org is a broad-based open access publisher. It provides free access to research information to the international community without financial, legal or technical barriers. All the journals from this organization will be freely distributed and available from multiple websites.

75. Library Genesis (LibGen)

A controversial yet immensely popular platform, LibGen hosts an extensive catalog of academic texts, journals, and books. Known for its extensive collection and accessibility, LibGen is a resource for individuals seeking academic materials that might not be readily available through traditional channels. It has gained traction as a resource for users worldwide due to its broad range of content.

76. PhilPapers.org

PhilPapers.org is a comprehensive index and bibliography of philosophy maintained by the community of philosophers. It’s an online source of research content in philosophy, including journals, books, open access archives, and personal pages maintained by academics.

77. SciELO.org

SciELO hosts a vast collection of academic journals primarily from Latin America, Spain, Portugal, and other Ibero-American regions. It’s a rich resource for accessing scholarly articles in various disciplines, offering open access to high-quality research, fostering knowledge sharing, and promoting regional academic excellence.

78. EBSCO Information Services

EBSCO is a comprehensive platform providing access to a wide array of scholarly journals, articles, and books across multiple disciplines. With its user-friendly interface and robust search capabilities, it’s a go-to resource for researchers, libraries, and institutions globally, offering diverse content and valuable research tools.

79. Econlit

EconLit, a premier resource for economics research, curates a comprehensive database of scholarly journals, articles, and books in the field. Tailored for economists, researchers, and students, it encompasses a vast array of economic literature, including peer-reviewed articles, working papers, and conference proceedings. Its specialized focus ensures in-depth coverage of economic theories, trends, and analyses, serving as an indispensable tool for those immersed in economic studies and research.

80. State Legislative Websites Directory

This online database contains information gleaned from the websites of the 50 state legislatures, the District of Columbia and the territories. You can select to view specific website content materials such as, bills, press rooms, statutes from any states.

81. Information Bridge: Department of Energy Scientific and Technical Information

The Information Bridge serves as a hub for the Department of Energy’s vast scientific and technical knowledge repository. It houses a comprehensive collection of academic journals, articles, and books, focusing on energy-related research. Researchers and academics access cutting-edge information on various energy disciplines, from renewable energy to nuclear physics, aiding in scholarly pursuits and industry advancements.

82. BioOne Complete

BioOne Complete is a specialized database catering to the life sciences, environmental studies, and related fields. It curates a collection of high-impact scholarly journals and research articles, facilitating access to cutting-edge biological research and ecological studies.

83. Civil Engineering Database

CEDB is a free bibliographic database for all ASCE publications including journals, conference proceedings, books, standards, manuals, magazines, and newspapers on all the disciplines of civil engineering. The coverage dates back to 1872.

84. LessonPlanet

LessonPlanet serves educators by offering a vast repository of lesson plans, teaching resources, and educational materials. It’s an invaluable tool for teachers, providing curated content to enhance classroom instruction and streamline lesson planning across various subjects and grade levels.

85. CiteULike

CiteULike is a free online service that allows users to save and share citations to academic papers. Based on the principle of social bookmarking, the site works to promote and to develop the sharing of scientific references amongst researchers.

86. Science.gov

Science.gov acts as a centralized gateway to authoritative scientific information sourced from multiple U.S. government agencies. It aggregates a wide spectrum of academic journals, articles, and books across scientific domains. This resource facilitates comprehensive searches, empowering researchers with reliable scientific data and publications crucial for academic research and evidence-based decision-making.

87. Cochrane Library

Cochrane Library is renowned for its systematic reviews and evidence-based healthcare research. It’s a crucial resource for medical professionals and researchers, offering comprehensive reviews that inform healthcare decisions and practices worldwide.

88. CAB Abstracts – CABI

CAB Abstracts is an English-language bibliographic information online service that provides access to the world’s applied life sciences literature. It comes with CABI Full Text, giving users automatic access to over 410,000 journal articles, conference papers and reports.

Zenodo is an open-access repository for scientific research data, enabling researchers to store, share, and explore datasets across disciplines. It promotes collaboration, transparency, and accessibility in scientific research, fostering innovation and knowledge exchange within the global research community.

90. Archives Hub

Archives Hub serves as a gateway to historical archives in the UK, offering access to a wealth of primary sources. It consolidates descriptions of archives held in various institutions, facilitating academic research. Through detailed records, researchers explore diverse topics spanning arts, humanities, and social sciences. The platform enables users to locate specific materials, aiding in comprehensive and in-depth investigations. Archives Hub stands as a vital resource for scholars delving into historical records, fostering a deeper understanding of past events and societal evolution.

91. OpenStax

Dedicated to advancing access to education, OpenStax offers free, peer-reviewed, and openly licensed textbooks. As an initiative aiming to alleviate the financial burden of education, OpenStax provides quality academic resources across various subjects. With a mission to make learning more accessible, it supports educators and learners globally by offering high-quality educational materials at no cost.

92. Bioline Internationl

Bioline International stands as a prominent platform offering open-access scholarly resources in the life sciences. Hosting a vast repository of peer-reviewed journals from developing countries, it promotes global access to valuable research. With a focus on biodiversity, environment, and healthcare, Bioline International facilitates the dissemination of cutting-edge scientific knowledge. Its diverse collection empowers researchers, students, and practitioners worldwide, fostering collaboration and advancing scientific discovery in crucial fields.

93. WorldWideScience

WorldWideScience serves as a global platform, aggregating scientific content from various countries and international organizations. It offers access to an extensive repository of academic journals, articles, and books, transcending geographical barriers. Researchers benefit from diverse perspectives and a wealth of information, fostering collaboration and knowledge exchange on an international scale.

94. Dimensions.ai

Dimensions.ai is an innovative research platform revolutionizing academic exploration. It integrates a vast array of scholarly resources, including articles, datasets, grants, and patents, offering a comprehensive view of research landscapes. Using sophisticated analytics and visualization tools, it assists researchers in uncovering connections, trends, and emerging areas of study. Dimensions.ai facilitates efficient literature searches, empowering scholars to navigate the expansive realm of academia and make informed contributions to their fields.

95. Ethnologue

Ethnologue is an annual reference publication in print and online that provides statistics and other information on the living languages of the world. It contains information on over 7000 languages including the number of speakers, locations, dialects, linguistic affiliations, autonyms, etc.

96. Taylor & Francis Online

Taylor & Francis Online hosts a vast collection of academic journals, articles, and books across various disciplines. With a user-friendly interface, it offers extensive resources in fields like science, humanities, social sciences, and more. Researchers benefit from comprehensive search tools, robust citation metrics, and access to cutting-edge research.

97. Zentralblatt MATH

Zentralblatt MATH serves as a comprehensive database for mathematical literature, covering a broad spectrum of mathematical research. With its extensive collection of abstracts and reviews, it provides valuable insights into mathematical publications worldwide. Researchers benefit from its indexing of mathematical articles, enabling efficient access to critical information, fostering collaboration, and supporting advancements in the field of mathematics.

98. PubMed Central

PubMed Central, a free digital repository, is a treasure trove of biomedical and life sciences literature. Hosting a vast archive of peer-reviewed articles, PubMed Central is a go-to platform for researchers, healthcare professionals, and students. Its comprehensive database encompasses a myriad of topics, facilitating easy access to authoritative information and fostering advancements in healthcare and life sciences.

99. EconBiz

EconBiz stands as a crucial resource for economists and social scientists, offering access to economic literature, research, and information. It aggregates a diverse range of publications, including articles, working papers, and research papers, facilitating comprehensive research in economics and related disciplines. EconBiz empowers users with efficient search functionalities, access to full-text documents, and information on events and job opportunities, fostering a vibrant academic community in the field of economics.

100. RefSeek – Academic Search Engine

RefSeek is a powerful academic search engine that scours the internet for scholarly resources. It indexes millions of documents, including articles, books, encyclopedias, and journals, ensuring a wide breadth of sources for researchers. With its user-friendly interface and advanced search capabilities, RefSeek streamlines the process of locating credible and authoritative information across various disciplines. It prioritizes academic content, making it an indispensable tool for students, scholars, and educators in their quest for reliable and relevant research materials.

101. Bielefeld Academic Search Engine (BASE)

BASE functions as a robust academic search engine, scouring the web for scholarly resources, including journals, articles, and books. It indexes content from various repositories, providing a user-friendly interface for researchers worldwide. With a focus on open access materials, BASE enhances accessibility to academic literature, supporting scholarly investigations across multiple disciplines.

102. JournalSeek

JournalSeek operates as a comprehensive database for academic journals, offering easy access to scholarly publications. It catalogs journals from diverse disciplines, allowing users to discover relevant articles and research papers. Researchers benefit from a user-friendly interface, streamlined search capabilities, and detailed journal information, facilitating efficient academic exploration and literature reviews.

Click here for more academic databases and search engines .

Remember, while these platforms offer valuable resources, access to some content may require institutional subscriptions or payment. Additionally, it’s essential to verify the credibility and peer-reviewed status of the sources before citing them in academic work.

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21 Legit Research Databases for Free Journal Articles in 2024

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Written by  Scribendi

Has this ever happened to you? While looking for websites for research, you come across a research paper site that claims to connect academics to a peer-reviewed article database for free.

Intrigued, you search for keywords related to your topic, only to discover that you must pay a hefty subscription fee to access the service. After the umpteenth time being duped, you begin to wonder if there's even such a thing as free journal articles.

Subscription fees and paywalls are often the bane of students and academics, especially those at small institutions who don't provide access to many free article directories and repositories.

Whether you're working on an undergraduate paper, a PhD dissertation, or a medical research study, we want to help you find tools to locate and access the information you need to produce well-researched, compelling, and innovative work.

Below, we discuss why peer-reviewed articles are superior and list out the best free article databases to use in 2024.

Download Our Free Research Database Roundup PDF

Why peer-reviewed scholarly journal articles are more authoritative.

Determining what sources are reliable can be challenging. Peer-reviewed scholarly journal articles are the gold standard in academic research. Reputable academic journals have a rigorous peer-review process.

The peer review process provides accountability to the academic community, as well as to the content of the article. The peer review process involves qualified experts in a specific (often very specific) field performing a review of an article's methods and findings to determine things like quality and credibility.

Peer-reviewed articles can be found in peer-reviewed article databases and research databases, and if you know that a database of journals is reliable, that can offer reassurances about the reliability of a free article. Peer review is often double blind, meaning that the author removes all identifying information and, likewise, does not know the identity of the reviewers. This helps reviewers maintain objectivity and impartiality so as to judge an article based on its merit.

Where to Find Peer-Reviewed Articles

Peer-reviewed articles can be found in a variety of research databases. Below is a list of some of the major databases you can use to find peer-reviewed articles and other sources in disciplines spanning the humanities, sciences, and social sciences.

What Are Open Access Journals?

An open access (OA) journal is a journal whose content can be accessed without payment. This provides scholars, students, and researchers with free journal articles. OA journals use alternate methods of funding to cover publication costs so that articles can be published without having to pass those publication costs on to the reader.

Some of these funding models include standard funding methods like advertising, public funding, and author payment models, where the author pays a fee in order to publish in the journal. There are OA journals that have non-peer-reviewed academic content, as well as journals that focus on dissertations, theses, and papers from conferences, but the main focus of OA is peer-reviewed scholarly journal articles.

The internet has certainly made it easier to access research articles and other scholarly publications without needing access to a university library, and OA takes another step in that direction by removing financial barriers to academic content.

Choosing Wisely

Features of legitimate oa journals.

 There are things to look out for when trying to decide if a free publication journal is legitimate:

Mission statement —The mission statement for an OA journal should be available on their website.

Publication history —Is the journal well established? How long has it been available?

Editorial board —Who are the members of the editorial board, and what are their credentials?

Indexing —Can the journal be found in a reliable database?

Peer review —What is the peer review process? Does the journal allow enough time in the process for a reliable assessment of quality?

Impact factor —What is the average number of times the journal is cited over a two-year period?

Features of Illegitimate OA Journals

There are predatory publications that take advantage of the OA format, and they are something to be wary of. Here are some things to look out for:

Contact information —Is contact information provided? Can it be verified?

Turnaround —If the journal makes dubious claims about the amount of time from submission to publication, it is likely unreliable.

Editorial board —Much like determining legitimacy, looking at the editorial board and their credentials can help determine illegitimacy.

Indexing —Can the journal be found in any scholarly databases?

Peer review —Is there a statement about the peer review process? Does it fit what you know about peer review?

How to Find Scholarly Articles

Identify keywords.

Keywords are included in an article by the author. Keywords are an excellent way to find content relevant to your research topic or area of interest. In academic searches, much like you would on a search engine, you can use keywords to navigate through what is available to find exactly what you're looking for.

Authors provide keywords that will help you easily find their article when researching a related topic, often including general terms to accommodate broader searches, as well as some more specific terms for those with a narrower scope. Keywords can be used individually or in combination to refine your scholarly article search.

Narrow Down Results

Sometimes, search results can be overwhelming, and searching for free articles on a journal database is no exception, but there are multiple ways to narrow down your results. A good place to start is discipline.

What category does your topic fall into (psychology, architecture, machine learning, etc.)? You can also narrow down your search with a year range if you're looking for articles that are more recent.

A Boolean search can be incredibly helpful. This entails including terms like AND between two keywords in your search if you need both keywords to be in your results (or, if you are looking to exclude certain keywords, to exclude these words from the results).

Consider Different Avenues

If you're not having luck using keywords in your search for free articles, you may still be able to find what you're looking for by changing your tactics. Casting a wider net sometimes yields positive results, so it may be helpful to try searching by subject if keywords aren't getting you anywhere.

You can search for a specific publisher to see if they have OA publications in the academic journal database. And, if you know more precisely what you're looking for, you can search for the title of the article or the author's name.

Determining the Credibility of Scholarly Sources

Ensuring that sources are both credible and reliable is crucial to academic research. Use these strategies to help evaluate the usefulness of scholarly sources:

• Peer Review : Look for articles that have undergone a rigorous peer-review process. Peer-reviewed articles are typically vetted by experts in the field, ensuring the accuracy of the research findings.

Tip: To determine whether an article has undergone rigorous peer review, review the journal's editorial policies, which are often available on the journal's website. Look for information about the peer-review process, including the criteria for selecting reviewers, the process for handling conflicts of interest, and any transparency measures in place.

• Publisher Reputation : Consider the reputation of the publisher. Established publishers, such as well-known academic journals, are more likely to adhere to high editorial standards and publishing ethics.
• Author Credentials : Evaluate the credentials and expertise of the authors. Check their affiliations, academic credentials, and past publications to assess their authority in the field.
• Citations and References : Examine the citations and references provided in the article. A well-researched article will cite credible sources to support its arguments and findings. Verify the accuracy of the cited sources and ensure they are from reputable sources.
• Publication Date : Consider the publication date of the article. While older articles may still be relevant, particularly in certain fields, it is best to prioritize recent publications for up-to-date research and findings.
• Journal Impact Factor : Assess the journal's impact factor or other metrics that indicate its influence and reputation within the academic community. Higher impact factor journals are generally considered more prestigious and reliable. 

Tip: Journal Citation Reports (JCR), produced by Clarivate Analytics, is a widely used source for impact factor data. You can access JCR through academic libraries or directly from the Clarivate Analytics website if you have a subscription.

• Peer Recommendations : Seek recommendations from peers, mentors, or professors in your field. They can provide valuable insights and guidance on reputable sources and journals within your area of study.
• Cross-Verification : Cross-verify the information presented in the article with other credible sources. Compare findings, methodologies, and conclusions with similar studies to ensure consistency and reliability.

By employing these strategies, researchers can confidently evaluate the credibility and reliability of scholarly sources, ensuring the integrity of their research contributions in an ever-evolving landscape.

The Top 21 Free Online Journal and Research Databases

Navigating OA journals, research article databases, and academic websites trying to find high-quality sources for your research can really make your head spin. What constitutes a reliable database? What is a useful resource for your discipline and research topic? How can you find and access full-text, peer-reviewed articles?

Fortunately, we're here to help. Having covered some of the ins and outs of peer review, OA journals, and how to search for articles, we have compiled a list of the top 21 free online journals and the best research databases. This list of databases is a great resource to help you navigate the wide world of academic research.

These databases provide a variety of free sources, from abstracts and citations to full-text, peer-reviewed OA journals. With databases covering specific areas of research and interdisciplinary databases that provide a variety of material, these are some of our favorite free databases, and they're totally legit!

CORE is a multidisciplinary aggregator of OA research. CORE has the largest collection of OA articles available. It allows users to search more than 219 million OA articles. While most of these link to the full-text article on the original publisher's site, or to a PDF available for download, five million records are hosted directly on CORE.

CORE's mission statement is a simple and straightforward commitment to offering OA articles to anyone, anywhere in the world. They also host communities that are available for researchers to join and an ambassador community to enhance their services globally. In addition to a straightforward keyword search, CORE offers advanced search options to filter results by publication type, year, language, journal, repository, and author.

CORE's user interface is easy to use and navigate. Search results can be sorted based on relevance or recency, and you can search for relevant content directly from the results screen.

Collection : 219,537,133 OA articles

Other Services : Additional services are available from CORE, with extras that are geared toward researchers, repositories, and businesses. There are tools for accessing raw data, including an API that provides direct access to data, datasets that are available for download, and FastSync for syncing data content from the CORE database.

CORE has a recommender plug-in that suggests relevant OA content in the database while conducting a search and a discovery feature that helps you discover OA versions of paywalled articles. Other features include tools for managing content, such as a dashboard for managing repository output and the Repository Edition service to enhance discoverability.

Good Source of Peer-Reviewed Articles : Yes

Advanced Search Options : Language, author, journal, publisher, repository, DOI, year

2. ScienceOpen

Functioning as a research and publishing network, ScienceOpen offers OA to more than 74 million articles in all areas of science. Although you do need to register to view the full text of articles, registration is free. The advanced search function is highly detailed, allowing you to find exactly the research you're looking for.

The Berlin- and Boston-based company was founded in 2013 to "facilitate open and public communications between academics and to allow ideas to be judged on their merit, regardless of where they come from." Search results can be exported for easy integration with reference management systems.

You can also bookmark articles for later research. There are extensive networking options, including your Science Open profile, a forum for interacting with other researchers, the ability to track your usage and citations, and an interactive bibliography. Users have the ability to review articles and provide their knowledge and insight within the community.

Collection : 74,560,631

Other Services : None

Advanced Search Options :   Content type, source, author, journal, discipline

3. Directory of Open Access Journals

A multidisciplinary, community-curated directory, the Directory of Open Access Journals (DOAJ) gives researchers access to high-quality peer-reviewed journals. It has archived more than two million articles from 17,193 journals, allowing you to either browse by subject or search by keyword.

The site was launched in 2003 with the aim of increasing the visibility of OA scholarly journals online. Content on the site covers subjects from science, to law, to fine arts, and everything in between. DOAJ has a commitment to "increase the visibility, accessibility, reputation, usage and impact of quality, peer-reviewed, OA scholarly research journals globally, regardless of discipline, geography or language."

Information about the journal is available with each search result. Abstracts are also available in a collapsible format directly from the search screen. The scholarly article website is somewhat simple, but it is easy to navigate. There are 16 principles of transparency and best practices in scholarly publishing that clearly outline DOAJ policies and standards.

Collection : 6,817,242

Advanced Search Options :   Subject, journal, year

4. Education Resources Information Center

The Education Resources Information Center (ERIC) of the Institution of Education Sciences allows you to search by topic for material related to the field of education. Links lead to other sites, where you may have to purchase the information, but you can search for full-text articles only. You can also search only peer-reviewed sources.

The service primarily indexes journals, gray literature (such as technical reports, white papers, and government documents), and books. All sources of material on ERIC go through a formal review process prior to being indexed. ERIC's selection policy is available as a PDF on their website.

The ERIC website has an extensive FAQ section to address user questions. This includes categories like general questions, peer review, and ERIC content. There are also tips for advanced searches, as well as general guidance on the best way to search the database. ERIC is an excellent database for content specific to education.

Collection : 1,292,897

Advanced Search Options : Boolean

5. arXiv e-Print Archive

The arXiv e-Print Archive is run by Cornell University Library and curated by volunteer moderators, and it now offers OA to more than one million e-prints.

There are advisory committees for all eight subjects available on the database. With a stated commitment to an "emphasis on openness, collaboration, and scholarship," the arXiv e-Print Archive is an excellent STEM resource.

The interface is not as user-friendly as some of the other databases available, and the website hosts a blog to provide news and updates, but it is otherwise a straightforward math and science resource. There are simple and advanced search options, and, in addition to conducting searches for specific topics and articles, users can browse content by subject. The arXiv e-Print Archive clearly states that they do not peer review the e-prints in the database.

Collection : 1,983,891

Good Source of Peer-Reviewed Articles : No

Advanced Search Options :   Subject, date, title, author, abstract, DOI

6. Social Science Research Network

The Social Science Research Network (SSRN) is a collection of papers from the social sciences community. It is a highly interdisciplinary platform used to search for scholarly articles related to 67 social science topics. SSRN has a variety of research networks for the various topics available through the free scholarly database.

The site offers more than 700,000 abstracts and more than 600,000 full-text papers. There is not yet a specific option to search for only full-text articles, but, because most of the papers on the site are free access, it's not often that you encounter a paywall. There is currently no option to search for only peer-reviewed articles.

You must become a member to use the services, but registration is free and enables you to interact with other scholars around the world. SSRN is "passionately committed to increasing inclusion, diversity and equity in scholarly research," and they encourage and discuss the use of inclusive language in scholarship whenever possible.

Collection : 1,058,739 abstracts; 915,452 articles

Advanced Search Options : Term, author, date, network

7. Public Library of Science

Public Library of Science (PLOS) is a big player in the world of OA science. Publishing 12 OA journals, the nonprofit organization is committed to facilitating openness in academic research. According to the site, "all PLOS content is at the highest possible level of OA, meaning that scientific articles are immediately and freely available to anyone, anywhere."

PLOS outlines four fundamental goals that guide the organization: break boundaries, empower researchers, redefine quality, and open science. All PLOS journals are peer-reviewed, and all 12 journals uphold rigorous ethical standards for research, publication, and scientific reporting.

PLOS does not offer advanced search options. Content is organized by topic into research communities that users can browse through, in addition to options to search for both articles and journals. The PLOS website also has resources for peer reviewers, including guidance on becoming a reviewer and on how to best participate in the peer review process.

Collection : 12 journals

Advanced Search Options : None

8. OpenDOAR

OpenDOAR, or the Directory of Open Access Repositories, is a comprehensive resource for finding free OA journals and articles. Using Google Custom Search, OpenDOAR combs through OA repositories around the world and returns relevant research in all disciplines.

The repositories it searches through are assessed and categorized by OpenDOAR staff to ensure they meet quality standards. Inclusion criteria for the database include requirements for OA content, global access, and categorically appropriate content, in addition to various other quality assurance measures. OpenDOAR has metadata, data, content, preservation, and submission policies for repositories, in addition to two OA policy statements regarding minimum and optimum recommendations.

This database allows users to browse and search repositories, which can then be selected, and articles and data can be accessed from the repository directly. As a repository database, much of the content on the site is geared toward the support of repositories and OA standards.

Collection : 5,768 repositories

Other Services : OpenDOAR offers a variety of additional services. Given the nature of the platform, services are primarily aimed at repositories and institutions, and there is a marked focus on OA in general. Sherpa services are OA archiving tools for authors and institutions.

They also offer various resources for OA support and compliance regarding standards and policies. The publication router matches publications and publishers with appropriate repositories.

There are also services and resources from JISC for repositories for cost management, discoverability, research impact, and interoperability, including ORCID consortium membership information. Additionally, a repository self-assessment tool is available for members.

Advanced Search Options :   Name, organization name, repository type, software name, content type, subject, country, region

9. Bielefeld Academic Search Engine

The Bielefeld Academic Search Engine (BASE) is operated by the Bielefeld University Library in Germany, and it offers more than 240 million documents from more than 8,000 sources. Sixty percent of its content is OA, and you can filter your search accordingly.

BASE has rigorous inclusion requirements for content providers regarding quality and relevance, and they maintain a list of content providers for the sake of transparency, which can be easily found on their website. BASE has a fairly elegant interface. Search results can be organized by author, title, or date.

From the search results, items can be selected and exported, added to favorites, emailed, and searched in Google Scholar. There are basic and advanced search features, with the advanced search offering numerous options for refining search criteria. There is also a feature on the website that saves recent searches without additional steps from the user.

Collection : 276,019,066 documents; 9,286 content providers

Advanced Search Options :   Author, subject, year, content provider, language, document type, access, terms of reuse

10. Digital Library of the Commons Repository

Run by Indiana University, the Digital Library of the Commons (DLC) Repository is a multidisciplinary journal repository that allows users to access thousands of free and OA articles from around the world. You can browse by document type, date, author, title, and more or search for keywords relevant to your topic.

DCL also offers the Comprehensive Bibliography of the Commons, an image database, and a keyword thesaurus for enhanced search parameters. The repository includes books, book chapters, conference papers, journal articles, surveys, theses and dissertations, and working papers. DCL advanced search features drop-down menus of search types with built-in Boolean search options.

Searches can be sorted by relevance, title, date, or submission date in ascending or descending order. Abstracts are included in selected search results, with access to full texts available, and citations can be exported from the same page. Additionally, the image database search includes tips for better search results.

Collection : 10,784

Advanced Search Options :   Author, date, title, subject, sector, region, conference

11. CIA World Factbook

The CIA World Factbook is a little different from the other resources on this list in that it is not an online journal directory or repository. It is, however, a useful free online research database for academics in a variety of disciplines.

All the information is free to access, and it provides facts about every country in the world, which are organized by category and include information about history, geography, transportation, and much more. The World Factbook can be searched by country or region, and there is also information about the world's oceans.

This site contains resources related to the CIA as an organization rather than being a scientific journal database specifically. The site has a user interface that is easy to navigate. The site also provides a section for updates regarding changes to what information is available and how it is organized, making it easier to interact with the information you are searching for.

Collection : 266 countries

12. Paperity

Paperity boasts its status as the "first multidisciplinary aggregator of OA journals and papers." Their focus is on helping you avoid paywalls while connecting you to authoritative research. In addition to providing readers with easy access to thousands of journals, Paperity seeks to help authors reach their audiences and help journals increase their exposure to boost readership.

Paperity has journal articles for every discipline, and the database offers more than a dozen advanced search options, including the length of the paper and the number of authors. There is even an option to include, exclude, or exclusively search gray papers.

Paperity is available for mobile, with both a mobile site and the Paperity Reader, an app that is available for both Android and Apple users. The database is also available on social media. You can interact with Paperity via Twitter and Facebook, and links to their social media are available on their homepage, including their Twitter feed.

Collection : 8,837,396

Advanced Search Options : Title, abstract, journal title, journal ISSN, publisher, year of publication, number of characters, number of authors, DOI, author, affiliation, language, country, region, continent, gray papers

13. dblp Computer Science Bibliography

The dblp Computer Science Bibliography is an online index of major computer science publications. dblp was founded in 1993, though until 2010 it was a university-specific database at the University of Trier in Germany. It is currently maintained by the Schloss Dagstuhl – Leibniz Center for Informatics.

Although it provides access to both OA articles and those behind a paywall, you can limit your search to only OA articles. The site indexes more than three million publications, making it an invaluable resource in the world of computer science. dblp entries are color-coded based on the type of item.

dblp has an extensive FAQ section, so questions that might arise about topics like the database itself, navigating the website, or the data on dblp, in addition to several other topics, are likely to be answered. The website also hosts a blog and has a section devoted to website statistics.

Collection : 5,884,702

14. EconBiz

EconBiz is a great resource for economic and business studies. A service of the Leibniz Information Centre for Economics, it offers access to full texts online, with the option of searching for OA material only. Their literature search is performed across multiple international databases.

EconBiz has an incredibly useful research skills section, with resources such as Guided Walk, a service to help students and researchers navigate searches, evaluate sources, and correctly cite references; the Research Guide EconDesk, a help desk to answer specific questions and provide advice to aid in literature searches; and the Academic Career Kit for what they refer to as Early Career Researchers.

Other helpful resources include personal literature lists, a calendar of events for relevant calls for papers, conferences, and workshops, and an economics terminology thesaurus to help in finding keywords for searches. To stay up-to-date with EconBiz, you can sign up for their newsletter.

Collection : 1,075,219

Advanced Search Options :   Title, subject, author, institution, ISBN/ISSN, journal, publisher, language, OA only

15. BioMed Central

BioMed Central provides OA research from more than 300 peer-reviewed journals. While originally focused on resources related to the physical sciences, math, and engineering, BioMed Central has branched out to include journals that cover a broader range of disciplines, with the aim of providing a single platform that provides OA articles for a variety of research needs. You can browse these journals by subject or title, or you can search all articles for your required keyword.

BioMed Central has a commitment to peer-reviewed sources and to the peer review process itself, continually seeking to help and improve the peer review process. They're "committed to maintaining high standards through full and stringent peer review."

Additionally, the website includes resources to assist and support editors as part of their commitment to providing high-quality, peer-reviewed OA articles.

Collection : 507,212

Other Services : BMC administers the International Standard Randomised Controlled Trial Number (ISRCTN) registry. While initially designed for registering clinical trials, since its creation in 2000, the registry has broadened its scope to include other health studies as well.

The registry is recognized by the International Committee of Medical Journal Editors, as well as the World Health Organization (WHO), and it meets the requirements established by the WHO International Clinical Trials Registry Platform.

The study records included in the registry are all searchable and free to access. The ISRCTN registry "supports transparency in clinical research, helps reduce selective reporting of results and ensures an unbiased and complete evidence base."

Advanced Search Options :   Author, title, journal, list

A multidisciplinary search engine, JURN provides links to various scholarly websites, articles, and journals that are free to access or OA. Covering the fields of the arts, humanities, business, law, nature, science, and medicine, JURN has indexed almost 5,000 repositories to help you find exactly what you're looking for.

Search features are enhanced by Google, but searches are filtered through their index of repositories. JURN seeks to reach a wide audience, with their search engine tailored to researchers from "university lecturers and students seeking a strong search tool for OA content" and "advanced and ambitious students, age 14-18" to "amateur historians and biographers" and "unemployed and retired lecturers."

That being said, JURN is very upfront about its limitations. They admit to not being a good resource for educational studies, social studies, or psychology, and conference archives are generally not included due to frequently unstable URLs.

Collection : 5,064 indexed journals

Other Services : JURN has a browser add-on called UserScript. This add-on allows users to integrate the JURN database directly into Google Search. When performing a search through Google, the add-on creates a link that sends the search directly to JURN CSE. JURN CSE is a search service that is hosted by Google.

Clicking the link from the Google Search bar will run your search through the JURN database from the Google homepage. There is also an interface for a DuckDuckGo search box; while this search engine has an emphasis on user privacy, for smaller sites that may be indexed by JURN, DuckDuckGo may not provide the same depth of results.

Advanced Search Options :   Google search modifiers

Dryad is a digital repository of curated, OA scientific research data. Launched in 2009, it is run by a not-for-profit membership organization, with a community of institutional and publisher members for whom their services have been designed. Members include institutions such as Stanford, UCLA, and Yale, as well as publishers like Oxford University Press and Wiley.

Dryad aims to "promote a world where research data is openly available, integrated with the scholarly literature, and routinely reused to create knowledge." It is free to access for the search and discovery of data. Their user experience is geared toward easy self-depositing, supports Creative Commons licensing, and provides DOIs for all their content.

Note that there is a publishing charge associated if you wish to publish your data in Dryad.  When searching datasets, they are accompanied by author information and abstracts for the associated studies, and citation information is provided for easy attribution.

Collection : 44,458

Advanced Search Options : No

Run by the British Library, the E-Theses Online Service (EThOS) allows you to search over 500,000 doctoral theses in a variety of disciplines. All of the doctoral theses available on EThOS have been awarded by higher education institutions in the United Kingdom.

Although some full texts are behind paywalls, you can limit your search to items available for immediate download, either directly through EThOS or through an institution's website. More than half of the records in the database provide access to full-text theses.

EThOS notes that they do not hold all records for all institutions, but they strive to index as many doctoral theses as possible, and the database is constantly expanding, with approximately 3,000 new records added and 2,000 new full-text theses available every month. The availability of full-text theses is dependent on multiple factors, including their availability in the institutional repository and the level of repository development.

Collection : 500,000+

Advanced Search Options : Abstract, author's first name, author's last name, awarding body, current institution, EThOS ID, year, language, qualifications, research supervisor, sponsor/funder, keyword, title

PubMed is a research platform well-known in the fields of science and medicine. It was created and developed by the National Center for Biotechnology Information (NCBI) at the National Library of Medicine (NLM). It has been available since 1996 and offers access to "more than 33 million citations for biomedical literature from MEDLINE, life science journals, and online books."

While PubMed does not provide full-text articles directly, and many full-text articles may be behind paywalls or require subscriptions to access them, when articles are available from free sources, such as through PubMed Central (PMC), those links are provided with the citations and abstracts that PubMed does provide.

PMC, which was established in 2000 by the NLM, is a free full-text archive that includes more than 6,000,000 records. PubMed records link directly to corresponding PMC results. PMC content is provided by publishers and other content owners, digitization projects, and authors directly.

Collection : 33,000,000+

Advanced Search Options : Author's first name, author's last name, identifier, corporation, date completed, date created, date entered, date modified, date published, MeSH, book, conflict of interest statement, EC/RN number, editor, filter, grant number, page number, pharmacological action, volume, publication type, publisher, secondary source ID, text, title, abstract, transliterated title

20. Semantic Scholar

A unique and easy-to-use resource, Semantic Scholar defines itself not just as a research database but also as a "search and discovery tool." Semantic Scholar harnesses the power of artificial intelligence to efficiently sort through millions of science-related papers based on your search terms.

Through this singular application of machine learning, Semantic Scholar expands search results to include topic overviews based on your search terms, with the option to create an alert for or further explore the topic. It also provides links to related topics.

In addition, search results produce "TLDR" summaries in order to provide concise overviews of articles and enhance your research by helping you to navigate quickly and easily through the available literature to find the most relevant information. According to the site, although some articles are behind paywalls, "the data [they] have for those articles is limited," so you can expect to receive mostly full-text results.

Collection : 203,379,033

Other Services : Semantic Scholar supports multiple popular browsers. Content can be accessed through both mobile and desktop versions of Firefox, Microsoft Edge, Google Chrome, Apple Safari, and Opera.

Additionally, Semantic Scholar provides browser extensions for both Chrome and Firefox, so AI-powered scholarly search results are never more than a click away. The mobile interface includes an option for Semantic Swipe, a new way of interacting with your research results.

There are also beta features that can be accessed as part of the Beta Program, which will provide you with features that are being actively developed and require user feedback for further improvement.

Advanced Search Options : Field of study, date range, publication type, author, journal, conference, PDF

Zenodo, powered by the European Organization for Nuclear Research (CERN), was launched in 2013. Taking its name from Zenodotus, the first librarian of the ancient library of Alexandria, Zenodo is a tool "built and developed by researchers, to ensure that everyone can join in open science." Zenodo accepts all research from every discipline in any file format.

However, Zenodo also curates uploads and promotes peer-reviewed material that is available through OA. A DOI is assigned to everything that is uploaded to Zenodo, making research easily findable and citable. You can sort by keyword, title, journal, and more and download OA documents directly from the site.

While there are closed access and restricted access items in the database, the vast majority of research is OA material. Search results can be filtered by access type, making it easy to view the free articles available in the database.

Collection : 2,220,000+

Advanced Search Options : Access, file type, keywords

Check out our roundup of free research databases as a handy one-page PDF.

How to find peer-reviewed articles.

There are a lot of free scholarly articles available from various sources. The internet is a big place. So how do you go about finding peer-reviewed articles when conducting your research? It's important to make sure you are using reputable sources.

The first source of the article is the person or people who wrote it. Checking out the author can give you some initial insight into how much you can trust what you’re reading. Looking into the publication information of your sources can also indicate whether the article is reliable.

Aspects of the article, such as subject and audience, tone, and format, are other things you can look at when evaluating whether the article you're using is valid, reputable, peer-reviewed material. So, let's break that down into various components so you can assess your research to ensure that you're using quality articles and conducting solid research.

Check the Author

Peer-reviewed articles are written by experts or scholars with experience in the field or discipline they're writing about. The research in a peer-reviewed article has to pass a rigorous evaluation process, so it's a foregone conclusion that the author(s) of a peer-reviewed article should have experience or training related to that research.

When evaluating an article, take a look at the author's information. What credentials does the author have to indicate that their research has scholarly weight behind it? Finding out what type of degree the author has—and what that degree is in—can provide insight into what kind of authority the author is on the subject.

Something else that might lend credence to the author's scholarly role is their professional affiliation. A look at what organization or institution they are affiliated with can tell you a lot about their experience or expertise. Where were they trained, and who is verifying their research?

Identify Subject and Audience

The ultimate goal of a study is to answer a question. Scholarly articles are also written for scholarly audiences, especially articles that have gone through the peer review process. This means that the author is trying to reach experts, researchers, academics, and students in the field or topic the research is based on.

Think about the question the author is trying to answer by conducting this research, why, and for whom. What is the subject of the article? What question has it set out to answer? What is the purpose of finding the information? Is the purpose of the article of importance to other scholars? Is it original content?

Research should also be approached analytically. Is the methodology sound? Is the author using an analytical approach to evaluate the data that they have obtained? Are the conclusions they've reached substantiated by their data and analysis? Answering these questions can reveal a lot about the article's validity.

Format Matters

Reliable articles from peer-reviewed sources have certain format elements to be aware of. The first is an abstract. An abstract is a short summary or overview of the article. Does the article have an abstract? It's unlikely that you're reading a peer-reviewed article if it doesn't. Peer-reviewed journals will also have a word count range. If an article seems far too short or incredibly long, that may be reason to doubt it.

Another feature of reliable articles is the sections the information is divided into. Peer-reviewed research articles will have clear, concise sections that appropriately organize the information. This might include a literature review, methodology, results (in the case of research articles), and a conclusion.

One of the most important sections is the references or bibliography. This is where the researcher lists all the sources of their information. A peer-reviewed source will have a comprehensive reference section.

An article that has been written to reach an academic community will have an academic tone. The language that is used, and the way this language is used, is important to consider. If the article is riddled with grammatical errors, confusing syntax, and casual language, it almost definitely didn't make it through the peer review process.

Also consider the use of terminology. Every discipline is going to have standard terminology or jargon that can be used and understood by other academics in the discipline. The language in a peer-reviewed article is going to reflect that.

If the author is going out of their way to explain simple terms, or terms that are standard to the field or discipline, it's unlikely that the article has been peer reviewed, as this is something that the author would be asked to address during the review process.

Publication

The source of the article will be a very good indicator of the likelihood that it was peer reviewed. Where was the article published? Was it published alongside other academic articles in the same discipline? Is it a legitimate and reputable scholarly publication?

A trade publication or newspaper might be legitimate or reputable, but it is not a scholarly source, and it will not have been subject to the peer review process. Scholarly journals are the best resource for peer-reviewed articles, but it's important to remember that not all scholarly journals are peer reviewed.

It's helpful to look at a scholarly source's website, as peer-reviewed journals will have a clear indication of the peer review process. University libraries, institutional repositories, and reliable databases (and now you have a list of legit ones) can also help provide insight into whether an article comes from a peer-reviewed journal.

Common Research Mistakes to Avoid

Research is a lot of work. Even with high standards and good intentions, it's easy to make mistakes. Perhaps you searched for access to scientific journals for free and found the perfect peer-reviewed sources, but you forgot to document everything, and your references are a mess. Or, you only searched for free online articles and missed out on a ground-breaking study that was behind a paywall.

Whether your research is for a degree or to get published or to satisfy your own inquisitive nature, or all of the above, you want all that work to produce quality results. You want your research to be thorough and accurate.

To have any hope of contributing to the literature on your research topic, your results need to be high quality. You might not be able to avoid every potential mistake, but here are some that are both common and easy to avoid.

Sticking to One Source

One of the hallmarks of good research is a healthy reference section. Using a variety of sources gives you a better answer to your question. Even if all of the literature is in agreement, looking at various aspects of the topic may provide you with an entirely different picture than you would have if you looked at your research question from only one angle.

Not Documenting Every Fact

As you conduct your research, do yourself a favor and write everything down. Everything you include in your paper or article that you got from another source is going to need to be added to your references and cited.

It's important, especially if your aim is to conduct ethical, high-quality research, that all of your research has proper attribution. If you don't document as you go, you could end up making a lot of work for yourself if the information you don't write down is something that later, as you write your paper, you really need.

Using Outdated Materials

Academia is an ever-changing landscape. What was true in your academic discipline or area of research ten years ago may have since been disproven. If fifteen studies have come out since the article that you're using was published, it's more than a little likely that you're going to be basing your research on flawed or dated information.

If the information you're basing your research on isn't as up-to-date as possible, your research won't be of quality or able to stand up to any amount of scrutiny. You don't want all of your hard work to be for naught.

Relying Solely on Open Access Journals

OA is a great resource for conducting academic research. There are high-quality journal articles available through OA, and that can be very helpful for your research. But, just because you have access to free articles, that doesn't mean that there's nothing to be found behind a paywall.

Just as dismissing high-quality peer-reviewed articles because they are OA would be limiting, not exploring any paid content at all is equally short-sighted. If you're seeking to conduct thorough and comprehensive research, exploring all of your options for quality sources is going to be to your benefit.

Digging Too Deep or Not Deep Enough

Research is an art form, and it involves a delicate balance of information. If you conduct your research using only broad search terms, you won't be able to answer your research question well, or you'll find that your research provides information that is closely related to your topic but, ultimately, your findings are vague and unsubstantiated.

On the other hand, if you delve deeply into your research topic with specific searches and turn up too many sources, you might have a lot of information that is adjacent to your topic but without focus and perhaps not entirely relevant. It's important to answer your research question concisely but thoroughly.

Different Types of Scholarly Articles

Different types of scholarly articles have different purposes. An original research article, also called an empirical article, is the product of a study or an experiment. This type of article seeks to answer a question or fill a gap in the existing literature.

Research articles will have a methodology, results, and a discussion of the findings of the experiment or research and typically a conclusion.

Review articles overview the current literature and research and provide a summary of what the existing research indicates or has concluded. This type of study will have a section for the literature review, as well as a discussion of the findings of that review. Review articles will have a particularly extensive reference or bibliography section.

Theoretical articles draw on existing literature to create new theories or conclusions, or look at current theories from a different perspective, to contribute to the foundational knowledge of the field of study.

10 Tips for Navigating Journal Databases

Use the right academic journal database for your search, be that interdisciplinary or specific to your field. Or both!

If it's an option, set the search results to return only peer-reviewed sources.

Start by using search terms that are relevant to your topic without being overly specific.

Try synonyms, especially if your keywords aren't returning the desired results.

Even if you've found some good articles, try searching using different terms.

Explore the advanced search features of the database(s).

Learn to use Booleans (AND, OR, NOT) to expand or narrow your results.

Once you've gotten some good results from a more general search, try narrowing your search.

Read through abstracts when trying to find articles relevant to your research.

Keep track of your research and use citation tools. It'll make life easier when it comes time to compile your references.

7 Frequently Asked Questions

1. how do i get articles for free.

Free articles can be found through free online academic journals, OA databases, or other databases that include OA journals and articles. These resources allow you to access free papers online so you can conduct your research without getting stuck behind a paywall.

Academics don't receive payment for the articles they contribute to journals. There are often, in fact, publication fees that scholars pay in order to publish. This is one of the funding structures that allows OA journals to provide free content so that you don't have to pay fees or subscription costs to access journal articles.

2. How Do I Find Journal Articles?

Journal articles can be found in databases and institutional repositories that can be accessed at university libraries. However, online research databases that contain OA articles are the best resource for getting free access to journal articles that are available online.

Peer-reviewed journal articles are the best to use for academic research, and there are a number of databases where you can find peer-reviewed OA journal articles. Once you've found a useful article, you can look through the references for the articles the author used to conduct their research, and you can then search online databases for those articles, too.

3. How Do I Find Peer-Reviewed Articles?

Peer-reviewed articles can be found in reputable scholarly peer-reviewed journals. High-quality journals and journal articles can be found online using academic search engines and free research databases. These resources are excellent for finding OA articles, including peer-reviewed articles.

OA articles are articles that can be accessed for free. While some scholarly search engines and databases include articles that aren't peer reviewed, there are also some that provide only peer-reviewed articles, and databases that include non-peer-reviewed articles often have advanced search features that enable you to select "peer review only." The database will return results that are exclusively peer-reviewed content.

4. What Are Research Databases?

A research database is a list of journals, articles, datasets, and/or abstracts that allows you to easily search for scholarly and academic resources and conduct research online. There are databases that are interdisciplinary and cover a variety of topics.

For example, Paperity might be a great resource for a chemist as well as a linguist, and there are databases that are more specific to a certain field. So, while ERIC might be one of the best educational databases available for OA content, it's not going to be one of the best databases for finding research in the field of microbiology.

5. How Do I Find Scholarly Articles for Specific Fields?

There are interdisciplinary research databases that provide articles in a variety of fields, as well as research databases that provide articles that cater to specific disciplines. Additionally, a journal repository or index can be a helpful resource for finding articles in a specific field.

When searching an interdisciplinary database, there are frequently advanced search features that allow you to narrow the search results down so that they are specific to your field. Selecting "psychology" in the advanced search features will return psychology journal articles in your search results. You can also try databases that are specific to your field.

If you're searching for law journal articles, many law reviews are OA. If you don't know of any databases specific to history, visiting a journal repository or index and searching "history academic journals" can return a list of journals specific to history and provide you with a place to begin your research.

6. Are Peer-Reviewed Articles Really More Legitimate?

The short answer is yes, peer-reviewed articles are more legitimate resources for academic research. The peer review process provides legitimacy, as it is a rigorous review of the content of an article that is performed by scholars and academics who are experts in their field of study. The review provides an evaluation of the quality and credibility of the article.

Non-peer-reviewed articles are not subject to a review process and do not undergo the same level of scrutiny. This means that non-peer-reviewed articles are unlikely, or at least not as likely, to meet the same standards that peer-reviewed articles do.

7. Are Free Article Directories Legitimate?

Yes! As with anything, some databases are going to be better for certain requirements than others. But, a scholarly article database being free is not a reason in itself to question its legitimacy.

Free scholarly article databases can provide access to abstracts, scholarly article websites, journal repositories, and high-quality peer-reviewed journal articles. The internet has a lot of information, and it's often challenging to figure out what information is reliable. 

Research databases and article directories are great resources to help you conduct your research. Our list of the best research paper websites is sure to provide you with sources that are totally legit.

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Reference management. Clean and simple.

The top list of academic research databases

2. Web of Science

5. ieee xplore, 6. sciencedirect, 7. directory of open access journals (doaj), get the most out of your academic research database, frequently asked questions about academic research databases, related articles.

Whether you are writing a thesis , dissertation, or research paper it is a key task to survey prior literature and research findings. More likely than not, you will be looking for trusted resources, most likely peer-reviewed research articles.

Academic research databases make it easy to locate the literature you are looking for. We have compiled the top list of trusted academic resources to help you get started with your research:

Scopus is one of the two big commercial, bibliographic databases that cover scholarly literature from almost any discipline. Besides searching for research articles, Scopus also provides academic journal rankings, author profiles, and an h-index calculator .

• Coverage: 90.6 million core records
• References: N/A
• Discipline: Multidisciplinary
• Access options: Limited free preview, full access by institutional subscription only
• Provider: Elsevier

Web of Science also known as Web of Knowledge is the second big bibliographic database. Usually, academic institutions provide either access to Web of Science or Scopus on their campus network for free.

• Coverage: approx. 100 million items
• References: 1.4 billion
• Access options: institutional subscription only
• Provider: Clarivate (formerly Thomson Reuters)

PubMed is the number one resource for anyone looking for literature in medicine or biological sciences. PubMed stores abstracts and bibliographic details of more than 30 million papers and provides full text links to the publisher sites or links to the free PDF on PubMed Central (PMC) .

• Coverage: approx. 35 million items
• Discipline: Medicine and Biological Sciences
• Access options: free
• Provider: NIH

For education sciences, ERIC is the number one destination. ERIC stands for Education Resources Information Center, and is a database that specifically hosts education-related literature.

• Coverage: approx. 1.6 million items
• Discipline: Education
• Provider: U.S. Department of Education

IEEE Xplore is the leading academic database in the field of engineering and computer science. It's not only journal articles, but also conference papers, standards and books that can be search for.

• Coverage: approx. 6 million items
• Discipline: Engineering
• Provider: IEEE (Institute of Electrical and Electronics Engineers)

ScienceDirect is the gateway to the millions of academic articles published by Elsevier, 1.4 million of which are open access. Journals and books can be searched via a single interface.

• Coverage: approx. 19.5 million items

The DOAJ is an open-access academic database that can be accessed and searched for free.

• Coverage: over 8 million records
• Provider: DOAJ

JSTOR is another great resource to find research papers. Any article published before 1924 in the United States is available for free and JSTOR also offers scholarships for independent researchers.

• Coverage: more than 12 million items
• Provider: ITHAKA

Start using a reference manager like Paperpile to save, organize, and cite your references. Paperpile integrates with PubMed and many popular databases, so you can save references and PDFs directly to your library using the Paperpile buttons:

Scopus is one of the two big commercial, bibliographic databases that cover scholarly literature from almost any discipline. Beside searching for research articles, Scopus also provides academic journal rankings, author profiles, and an h-index calculator .

PubMed is the number one resource for anyone looking for literature in medicine or biological sciences. PubMed stores abstracts and bibliographic details of more than 30 million papers and provides full text links to the publisher sites or links to the free PDF on PubMed Central (PMC)

Eight Ways (and More) To Find and Access Research Papers

This blog is part of our Research Smarter series. You’ll discover the various search engines, databases and data repositories to help you along the way. Click on any of the following links for in an in-depth look at how to find relevant research papers, journals , and authors for your next project using the Web of Science™. You can  also check out our ultimate guides here , which include tips to speed up the writing process.

If you’re in the early stages of your research career, you’re likely struggling to learn all you can about your chosen field and evaluate your options. You also need an easy and convenient way to find the right research papers upon which to build your own work and keep you on the proper path toward your goals.

Fortunately, most institutions have access to thousands of journals, so your first step should be to be to check with library staff  and find out what is available via your institutional subscriptions.

For those who may be unfamiliar with other means of access, this blog post – the first in a series devoted to helping you “research smarter” – will provide a sampling of established data sources for scientific research. These include search engines, databases, and data repositories.

Search Engines and Databases

You may have already discovered that the process of searching for research papers offers many choices and scenarios. Some search engines, for example, can be accessed free of charge. Others require a subscription. The latter group generally includes services that index the contents of thousands of published journals, allowing for detailed searches on data fields such as author name, institution, title or keyword, and even funding sources. Because many journals operate on a subscription model too, the process of obtaining full-text versions of papers can be complicated.

On the other hand, a growing number of publishers follow the practice of Open Access (OA) , making their journal content freely available. Similarly, some authors publish their results in the form of preprints, posting them to preprint servers for immediate and free access. These repositories, like indexing services, differ in that some concentrate in a given discipline or broad subject area, while others cover the full range of research.

Search Engines

Following is a brief selection of reputable search engines by which to locate articles relevant to your research.

Google Scholar is a free search engine that provides access to research in multiple disciplines. The sources include academic publishers, universities, online repositories, books, and even judicial opinions from court cases. Based on its indexing, Google Scholar provides citation counts to allow authors and others to track the impact of their work.  

The Directory of Open Access Journals ( DOAJ ) allows users to search and retrieve the article contents of nearly 10,000 OA journals in science, technology, medicine, social sciences, and humanities. All journals must adhere to quality-control standards, including peer review.

PubMed , maintained by the US National Library of Medicine, is a free search engine covering the biomedical and life sciences. Its coverage derives primarily from the MEDLINE database, covering materials as far back as 1951.

JSTOR affords access to more than 12 million journal articles in upwards of 75 disciplines, providing full-text searches of more than 2,000 journals, and access to more than 5,000 OA books.

Selected Databases

The following selection samples a range of resources, including databases which, as discussed above, index the contents of journals either in a given specialty area or the full spectrum of research. Others listed below offer consolidated coverage of multiple databases. Your institution is likely subscribed to a range of research databases, speak to your librarian to see which databases you have access to, and how to go about your search.

Web of Science includes The Web of Science Core Collection, which covers more than 20,000 carefully selected journals, along with books, conference proceedings, and other sources. The indexing also captures citation data, permitting users to follow the thread of an idea or development over time, as well as to track a wide range of research-performance metrics. The Web of Science also features EndNote™ Click , a free browser plugin that offers one-click access to the best available legal and legitimate full-text versions of papers. See here for our ultimate guide to finding relevant research papers on the Web of Science .

Science.gov covers the vast territory of United States federal science, including more than 60 databases and 2,200-plus websites. The many allied agencies whose research is reflected include NASA, the US Department of Agriculture, and the US Environmental Protection Agency.

CiteSeerx is devoted primarily to information and computer science. The database includes a feature called Autonomous Citation Indexing, designed to extract citations and create a citation index for literature searching and evaluation.

Preprint and Data Repositories

An early form of OA literature involved authors, as noted above,  making electronic, preprint versions of their papers freely available. This practice has expanded widely today. You can find archives devoted to a single main specialty area, as well as general repositories connected with universities and other institutions.

The specialty archive is perhaps best exemplified by arXiv (conveniently pronounced “archive,” and one of the earliest examples of a preprint repository). Begun in 1991 as a physics repository, ArXiv has expanded to embrace mathematics, astronomy, statistics, economics, and other disciplines. The success of ArXiv spurred the development of, for example, bioArXiv devoted to an array of topics within biology, and for chemistry, ChemRxiv .

Meanwhile, thousands of institutional repositories hold a variety of useful materials. In addition to research papers, these archives store raw datasets, graphics, notes, and other by-products of investigation. Currently, the Registry of Open Access Repositories lists more than 4,700 entries.

Reach Out Yourself?

If the resources above don’t happen to result in a free and full-text copy of the research you seek, you can also try reaching out to the authors yourself.

To find who authored a paper, you can search indexing platforms like the Web of Science , or research profiling systems like Publons™ , or ResearchGate , then look to reach out to the authors directly.

So, although the sheer volume of research can pose a challenge to identifying and securing needed papers, plenty of options are available.

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Open Access Theses and Dissertations

Thursday, April 18, 8:20am (EDT): Searching is temporarily offline. We apologize for the inconvenience and are working to bring searching back up as quickly as possible.

Advanced research and scholarship. Theses and dissertations, free to find, free to use.

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Browse by author name (“Author name starts with…”).

Find ETDs with:

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Recent Additions

See all of this week’s new additions.

About OATD.org

OATD.org aims to be the best possible resource for finding open access graduate theses and dissertations published around the world. Metadata (information about the theses) comes from over 1100 colleges, universities, and research institutions . OATD currently indexes 7,241,108 theses and dissertations.

About OATD (our FAQ) .

Visual OATD.org

We’re happy to present several data visualizations to give an overall sense of the OATD.org collection by county of publication, language, and field of study.

You may also want to consult these sites to search for other theses:

• Google Scholar
• NDLTD , the Networked Digital Library of Theses and Dissertations. NDLTD provides information and a search engine for electronic theses and dissertations (ETDs), whether they are open access or not.
• Proquest Theses and Dissertations (PQDT), a database of dissertations and theses, whether they were published electronically or in print, and mostly available for purchase. Access to PQDT may be limited; consult your local library for access information.

How to Write a Research Paper 

• Smodin Editorial Team
• Updated: May 17, 2024

Most students hate writing research papers. The process can often feel long, tedious, and sometimes outright boring. Nevertheless, these assignments are vital to a student’s academic journey. Want to learn how to write a research paper that captures the depth of the subject and maintains the reader’s interest? If so, this guide is for you.

Today, we’ll show you how to assemble a well-organized research paper to help you make the grade. You can transform any topic into a compelling research paper with a thoughtful approach to your research and a persuasive argument.

In this guide, we’ll provide seven simple but practical tips to help demystify the process and guide you on your way. We’ll also explain how AI tools can expedite the research and writing process so you can focus on critical thinking.

By the end of this article, you’ll have a clear roadmap for tackling these essays. You will also learn how to tackle them quickly and efficiently. With time and dedication, you’ll soon master the art of research paper writing.

Ready to get started?

What Is a Research Paper?

A research paper is a comprehensive essay that gives a detailed analysis, interpretation, or argument based on your own independent research. In higher-level academic settings, it goes beyond a simple summarization and includes a deep inquiry into the topic or topics.

The term “research paper” is a broad term that can be applied to many different forms of academic writing. The goal is to combine your thoughts with the findings from peer-reviewed scholarly literature.

By the time your essay is done, you should have provided your reader with a new perspective or challenged existing findings. This demonstrates your mastery of the subject and contributes to ongoing scholarly debates.

7 Tips for Writing a Research Paper

Often, getting started is the most challenging part of a research paper. While the process can seem daunting, breaking it down into manageable steps can make it easier to manage. The following are seven tips for getting your ideas out of your head and onto the page.

1. Understand Your Assignment

It may sound simple, but the first step in writing a successful research paper is to read the assignment. Sit down, take a few moments of your time, and go through the instructions so you fully understand your assignment.

Misinterpreting the assignment can not only lead to a significant waste of time but also affect your grade. No matter how patient your teacher or professor may be, ignoring basic instructions is often inexcusable.

If you read the instructions and are still confused, ask for clarification before you start writing. If that’s impossible, you can use tools like Smodin’s AI chat to help. Smodin can help highlight critical requirements that you may overlook.

This initial investment ensures that all your future efforts will be focused and efficient. Remember, thinking is just as important as actually writing the essay, and it can also pave the wave for a smoother writing process.

2. Gather Research Materials

Now comes the fun part: doing the research. As you gather research materials, always use credible sources, such as academic journals or peer-reviewed papers. Only use search engines that filter for accredited sources and academic databases so you can ensure your information is reliable.

To optimize your time, you must learn to master the art of skimming. If a source seems relevant and valuable, save it and review it later. The last thing you want to do is waste time on material that won’t make it into the final paper.

To speed up the process even more, consider using Smodin’s AI summarizer . This tool can help summarize large texts, highlighting key information relevant to your topic. By systematically gathering and filing research materials early in the writing process, you build a strong foundation for your thesis.

3. Write Your Thesis

Creating a solid thesis statement is the most important thing you can do to bring structure and focus to your research paper. Your thesis should express the main point of your argument in one or two simple sentences. Remember, when you create your thesis, you’re setting the tone and direction for the entire paper.

Of course, you can’t just pull a winning thesis out of thin air. Start by brainstorming potential thesis ideas based on your preliminary research. And don’t overthink things; sometimes, the most straightforward ideas are often the best.

You want a thesis that is specific enough to be manageable within the scope of your paper but broad enough to allow for a unique discussion. Your thesis should challenge existing expectations and provide the reader with fresh insight into the topic. Use your thesis to hook the reader in the opening paragraph and keep them engaged until the very last word.

4. Write Your Outline

An outline is an often overlooked but essential tool for organizing your thoughts and structuring your paper. Many students skip the outline because it feels like doing double work, but a strong outline will save you work in the long run.

Here’s how to effectively structure your outline.

• Introduction: List your thesis statement and outline the main questions your essay will answer.
• Literature Review: Outline the key literature you plan to discuss and explain how it will relate to your thesis.
• Methodology: Explain the research methods you will use to gather and analyze the information.
• Discussion: Plan how you will interpret the results and their implications for your thesis.
• Conclusion: Summarize the content above to elucidate your thesis fully.

To further streamline this process, consider using Smodin’s Research Writer. This tool offers a feature that allows you to generate and tweak an outline to your liking based on the initial input you provide. You can adjust this outline to fit your research findings better and ensure that your paper remains well-organized and focused.

5. Write a Rough Draft

Once your outline is in place, you can begin the writing process. Remember, when you write a rough draft, it isn’t meant to be perfect. Instead, use it as a working document where you can experiment with and rearrange your arguments and evidence.

Don’t worry too much about grammar, style, or syntax as you write your rough draft. Focus on getting your ideas down on paper and flush out your thesis arguments. You can always refine and rearrange the content the next time around.

Follow the basic structure of your outline but with the freedom to explore different ways of expressing your thoughts. Smodin’s Essay Writer offers a powerful solution for those struggling with starting or structuring their drafts.

After you approve the outline, Smodin can generate an essay based on your initial inputs. This feature can help you quickly create a comprehensive draft, which you can then review and refine. You can even use the power of AI to create multiple rough drafts from which to choose.

6. Add or Subtract Supporting Evidence

Once you have a rough draft, but before you start the final revision, it’s time to do a little cleanup. In this phase, you need to review all your supporting evidence. You want to ensure that there is nothing redundant and that you haven’t overlooked any crucial details.

Many students struggle to make the required word count for an essay and resort to padding their writing with redundant statements. Instead of adding unnecessary content, focus on expanding your analysis to provide deeper insights.

A good essay, regardless of the topic or format, needs to be streamlined. It should convey clear, convincing, relevant information supporting your thesis. If you find some information doesn’t do that, consider tweaking your sources.

Include a variety of sources, including studies, data, and quotes from scholars or other experts. Remember, you’re not just strengthening your argument but demonstrating the depth of your research.

If you want comprehensive feedback on your essay without going to a writing center or pestering your professor, use Smodin. The AI Chat can look at your draft and offer suggestions for improvement.

7. Revise, Cite, and Submit

The final stages of crafting a research paper involve revision, citation, and final review. You must ensure your paper is polished, professionally presented, and plagiarism-free. Of course, integrating Smodin’s AI tools can significantly streamline this process and enhance the quality of your final submission.

Start by using Smodin’s Rewriter tool. This AI-powered feature can help rephrase and refine your draft to improve overall readability. If a specific section of your essay just “doesn’t sound right,” the AI can suggest alternative sentence structures and word choices.

Proper citation is a must for all academic papers. Thankfully, thanks to Smodin’s Research Paper app, this once tedious process is easier than ever. The AI ensures all sources are accurately cited according to the required style guide (APA, MLA, Chicago, etc.).

Plagiarism Checker:

All students need to realize that accidental plagiarism can happen. That’s why using a Plagiarism Checker to scan your essay before you submit it is always useful. Smodin’s Plagiarism Checker can highlight areas of concern so you can adjust accordingly.

Final Submission

After revising, rephrasing, and ensuring all citations are in order, use Smodin’s AI Content Detector to give your paper one last review. This tool can help you analyze your paper’s overall quality and readability so you can make any final tweaks or improvements.

Mastering Research Papers

Mastering the art of the research paper cannot be overstated, whether you’re in high school, college, or postgraduate studies. You can confidently prepare your research paper for submission by leveraging the AI tools listed above.

Research papers help refine your abilities to think critically and write persuasively. The skills you develop here will serve you well beyond the walls of the classroom. Communicating complex ideas clearly and effectively is one of the most powerful tools you can possess.

With the advancements of AI tools like Smodin , writing a research paper has become more accessible than ever before. These technologies streamline the process of organizing, writing, and revising your work. Write with confidence, knowing your best work is yet to come!

Cultural Relativity and Acceptance of Embryonic Stem Cell Research

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Main Article Content

There is a debate about the ethical implications of using human embryos in stem cell research, which can be influenced by cultural, moral, and social values. This paper argues for an adaptable framework to accommodate diverse cultural and religious perspectives. By using an adaptive ethics model, research protections can reflect various populations and foster growth in stem cell research possibilities.

INTRODUCTION

Stem cell research combines biology, medicine, and technology, promising to alter health care and the understanding of human development. Yet, ethical contention exists because of individuals’ perceptions of using human embryos based on their various cultural, moral, and social values. While these disagreements concerning policy, use, and general acceptance have prompted the development of an international ethics policy, such a uniform approach can overlook the nuanced ethical landscapes between cultures. With diverse viewpoints in public health, a single global policy, especially one reflecting Western ethics or the ethics prevalent in high-income countries, is impractical. This paper argues for a culturally sensitive, adaptable framework for the use of embryonic stem cells. Stem cell policy should accommodate varying ethical viewpoints and promote an effective global dialogue. With an extension of an ethics model that can adapt to various cultures, we recommend localized guidelines that reflect the moral views of the people those guidelines serve.

Stem cells, characterized by their unique ability to differentiate into various cell types, enable the repair or replacement of damaged tissues. Two primary types of stem cells are somatic stem cells (adult stem cells) and embryonic stem cells. Adult stem cells exist in developed tissues and maintain the body’s repair processes. [1] Embryonic stem cells (ESC) are remarkably pluripotent or versatile, making them valuable in research. [2] However, the use of ESCs has sparked ethics debates. Considering the potential of embryonic stem cells, research guidelines are essential. The International Society for Stem Cell Research (ISSCR) provides international stem cell research guidelines. They call for “public conversations touching on the scientific significance as well as the societal and ethical issues raised by ESC research.” [3] The ISSCR also publishes updates about culturing human embryos 14 days post fertilization, suggesting local policies and regulations should continue to evolve as ESC research develops. [4]  Like the ISSCR, which calls for local law and policy to adapt to developing stem cell research given cultural acceptance, this paper highlights the importance of local social factors such as religion and culture.

I.     Global Cultural Perspective of Embryonic Stem Cells

Views on ESCs vary throughout the world. Some countries readily embrace stem cell research and therapies, while others have stricter regulations due to ethical concerns surrounding embryonic stem cells and when an embryo becomes entitled to moral consideration. The philosophical issue of when the “someone” begins to be a human after fertilization, in the morally relevant sense, [5] impacts when an embryo becomes not just worthy of protection but morally entitled to it. The process of creating embryonic stem cell lines involves the destruction of the embryos for research. [6] Consequently, global engagement in ESC research depends on social-cultural acceptability.

a.     US and Rights-Based Cultures

In the United States, attitudes toward stem cell therapies are diverse. The ethics and social approaches, which value individualism, [7] trigger debates regarding the destruction of human embryos, creating a complex regulatory environment. For example, the 1996 Dickey-Wicker Amendment prohibited federal funding for the creation of embryos for research and the destruction of embryos for “more than allowed for research on fetuses in utero.” [8] Following suit, in 2001, the Bush Administration heavily restricted stem cell lines for research. However, the Stem Cell Research Enhancement Act of 2005 was proposed to help develop ESC research but was ultimately vetoed. [9] Under the Obama administration, in 2009, an executive order lifted restrictions allowing for more development in this field. [10] The flux of research capacity and funding parallels the different cultural perceptions of human dignity of the embryo and how it is socially presented within the country’s research culture. [11]

b.     Ubuntu and Collective Cultures

African bioethics differs from Western individualism because of the different traditions and values. African traditions, as described by individuals from South Africa and supported by some studies in other African countries, including Ghana and Kenya, follow the African moral philosophies of Ubuntu or Botho and Ukama , which “advocates for a form of wholeness that comes through one’s relationship and connectedness with other people in the society,” [12] making autonomy a socially collective concept. In this context, for the community to act autonomously, individuals would come together to decide what is best for the collective. Thus, stem cell research would require examining the value of the research to society as a whole and the use of the embryos as a collective societal resource. If society views the source as part of the collective whole, and opposes using stem cells, compromising the cultural values to pursue research may cause social detachment and stunt research growth. [13] Based on local culture and moral philosophy, the permissibility of stem cell research depends on how embryo, stem cell, and cell line therapies relate to the community as a whole . Ubuntu is the expression of humanness, with the person’s identity drawn from the “’I am because we are’” value. [14] The decision in a collectivistic culture becomes one born of cultural context, and individual decisions give deference to others in the society.

Consent differs in cultures where thought and moral philosophy are based on a collective paradigm. So, applying Western bioethical concepts is unrealistic. For one, Africa is a diverse continent with many countries with different belief systems, access to health care, and reliance on traditional or Western medicines. Where traditional medicine is the primary treatment, the “’restrictive focus on biomedically-related bioethics’” [is] problematic in African contexts because it neglects bioethical issues raised by traditional systems.” [15] No single approach applies in all areas or contexts. Rather than evaluating the permissibility of ESC research according to Western concepts such as the four principles approach, different ethics approaches should prevail.

Another consideration is the socio-economic standing of countries. In parts of South Africa, researchers have not focused heavily on contributing to the stem cell discourse, either because it is not considered health care or a health science priority or because resources are unavailable. [16] Each country’s priorities differ given different social, political, and economic factors. In South Africa, for instance, areas such as maternal mortality, non-communicable diseases, telemedicine, and the strength of health systems need improvement and require more focus. [17] Stem cell research could benefit the population, but it also could divert resources from basic medical care. Researchers in South Africa adhere to the National Health Act and Medicines Control Act in South Africa and international guidelines; however, the Act is not strictly enforced, and there is no clear legislation for research conduct or ethical guidelines. [18]

Some parts of Africa condemn stem cell research. For example, 98.2 percent of the Tunisian population is Muslim. [19] Tunisia does not permit stem cell research because of moral conflict with a Fatwa. Religion heavily saturates the regulation and direction of research. [20] Stem cell use became permissible for reproductive purposes only recently, with tight restrictions preventing cells from being used in any research other than procedures concerning ART/IVF.  Their use is conditioned on consent, and available only to married couples. [21] The community's receptiveness to stem cell research depends on including communitarian African ethics.

c.     Asia

Some Asian countries also have a collective model of ethics and decision making. [22] In China, the ethics model promotes a sincere respect for life or human dignity, [23] based on protective medicine. This model, influenced by Traditional Chinese Medicine (TCM), [24] recognizes Qi as the vital energy delivered via the meridians of the body; it connects illness to body systems, the body’s entire constitution, and the universe for a holistic bond of nature, health, and quality of life. [25] Following a protective ethics model, and traditional customs of wholeness, investment in stem cell research is heavily desired for its applications in regenerative therapies, disease modeling, and protective medicines. In a survey of medical students and healthcare practitioners, 30.8 percent considered stem cell research morally unacceptable while 63.5 percent accepted medical research using human embryonic stem cells. Of these individuals, 89.9 percent supported increased funding for stem cell research. [26] The scientific community might not reflect the overall population. From 1997 to 2019, China spent a total of $576 million (USD) on stem cell research at 8,050 stem cell programs, increased published presence from 0.6 percent to 14.01 percent of total global stem cell publications as of 2014, and made significant strides in cell-based therapies for various medical conditions. [27] However, while China has made substantial investments in stem cell research and achieved notable progress in clinical applications, concerns linger regarding ethical oversight and transparency. [28] For example, the China Biosecurity Law, promoted by the National Health Commission and China Hospital Association, attempted to mitigate risks by introducing an institutional review board (IRB) in the regulatory bodies. 5800 IRBs registered with the Chinese Clinical Trial Registry since 2021. [29] However, issues still need to be addressed in implementing effective IRB review and approval procedures.

The substantial government funding and focus on scientific advancement have sometimes overshadowed considerations of regional cultures, ethnic minorities, and individual perspectives, particularly evident during the one-child policy era. As government policy adapts to promote public stability, such as the change from the one-child to the two-child policy, [30] research ethics should also adapt to ensure respect for the values of its represented peoples.

Japan is also relatively supportive of stem cell research and therapies. Japan has a more transparent regulatory framework, allowing for faster approval of regenerative medicine products, which has led to several advanced clinical trials and therapies. [31] South Korea is also actively engaged in stem cell research and has a history of breakthroughs in cloning and embryonic stem cells. [32] However, the field is controversial, and there are issues of scientific integrity. For example, the Korean FDA fast-tracked products for approval, [33] and in another instance, the oocyte source was unclear and possibly violated ethical standards. [34] Trust is important in research, as it builds collaborative foundations between colleagues, trial participant comfort, open-mindedness for complicated and sensitive discussions, and supports regulatory procedures for stakeholders. There is a need to respect the culture’s interest, engagement, and for research and clinical trials to be transparent and have ethical oversight to promote global research discourse and trust.

d.     Middle East

Countries in the Middle East have varying degrees of acceptance of or restrictions to policies related to using embryonic stem cells due to cultural and religious influences. Saudi Arabia has made significant contributions to stem cell research, and conducts research based on international guidelines for ethical conduct and under strict adherence to guidelines in accordance with Islamic principles. Specifically, the Saudi government and people require ESC research to adhere to Sharia law. In addition to umbilical and placental stem cells, [35] Saudi Arabia permits the use of embryonic stem cells as long as they come from miscarriages, therapeutic abortions permissible by Sharia law, or are left over from in vitro fertilization and donated to research. [36] Laws and ethical guidelines for stem cell research allow the development of research institutions such as the King Abdullah International Medical Research Center, which has a cord blood bank and a stem cell registry with nearly 10,000 donors. [37] Such volume and acceptance are due to the ethical ‘permissibility’ of the donor sources, which do not conflict with religious pillars. However, some researchers err on the side of caution, choosing not to use embryos or fetal tissue as they feel it is unethical to do so. [38]

Jordan has a positive research ethics culture. [39] However, there is a significant issue of lack of trust in researchers, with 45.23 percent (38.66 percent agreeing and 6.57 percent strongly agreeing) of Jordanians holding a low level of trust in researchers, compared to 81.34 percent of Jordanians agreeing that they feel safe to participate in a research trial. [40] Safety testifies to the feeling of confidence that adequate measures are in place to protect participants from harm, whereas trust in researchers could represent the confidence in researchers to act in the participants’ best interests, adhere to ethical guidelines, provide accurate information, and respect participants’ rights and dignity. One method to improve trust would be to address communication issues relevant to ESC. Legislation surrounding stem cell research has adopted specific language, especially concerning clarification “between ‘stem cells’ and ‘embryonic stem cells’” in translation. [41] Furthermore, legislation “mandates the creation of a national committee… laying out specific regulations for stem-cell banking in accordance with international standards.” [42] This broad regulation opens the door for future global engagement and maintains transparency. However, these regulations may also constrain the influence of research direction, pace, and accessibility of research outcomes.

e.     Europe

In the European Union (EU), ethics is also principle-based, but the principles of autonomy, dignity, integrity, and vulnerability are interconnected. [43] As such, the opportunity for cohesion and concessions between individuals’ thoughts and ideals allows for a more adaptable ethics model due to the flexible principles that relate to the human experience The EU has put forth a framework in its Convention for the Protection of Human Rights and Dignity of the Human Being allowing member states to take different approaches. Each European state applies these principles to its specific conventions, leading to or reflecting different acceptance levels of stem cell research. [44]

For example, in Germany, Lebenzusammenhang , or the coherence of life, references integrity in the unity of human culture. Namely, the personal sphere “should not be subject to external intervention.” [45]  Stem cell interventions could affect this concept of bodily completeness, leading to heavy restrictions. Under the Grundgesetz, human dignity and the right to life with physical integrity are paramount. [46] The Embryo Protection Act of 1991 made producing cell lines illegal. Cell lines can be imported if approved by the Central Ethics Commission for Stem Cell Research only if they were derived before May 2007. [47] Stem cell research respects the integrity of life for the embryo with heavy specifications and intense oversight. This is vastly different in Finland, where the regulatory bodies find research more permissible in IVF excess, but only up to 14 days after fertilization. [48] Spain’s approach differs still, with a comprehensive regulatory framework. [49] Thus, research regulation can be culture-specific due to variations in applied principles. Diverse cultures call for various approaches to ethical permissibility. [50] Only an adaptive-deliberative model can address the cultural constructions of self and achieve positive, culturally sensitive stem cell research practices. [51]

II.     Religious Perspectives on ESC

Embryonic stem cell sources are the main consideration within religious contexts. While individuals may not regard their own religious texts as authoritative or factual, religion can shape their foundations or perspectives.

The Qur'an states:

“And indeed We created man from a quintessence of clay. Then We placed within him a small quantity of nutfa (sperm to fertilize) in a safe place. Then We have fashioned the nutfa into an ‘alaqa (clinging clot or cell cluster), then We developed the ‘alaqa into mudgha (a lump of flesh), and We made mudgha into bones, and clothed the bones with flesh, then We brought it into being as a new creation. So Blessed is Allah, the Best of Creators.” [52]

Many scholars of Islam estimate the time of soul installment, marked by the angel breathing in the soul to bring the individual into creation, as 120 days from conception. [53] Personhood begins at this point, and the value of life would prohibit research or experimentation that could harm the individual. If the fetus is more than 120 days old, the time ensoulment is interpreted to occur according to Islamic law, abortion is no longer permissible. [54] There are a few opposing opinions about early embryos in Islamic traditions. According to some Islamic theologians, there is no ensoulment of the early embryo, which is the source of stem cells for ESC research. [55]

In Buddhism, the stance on stem cell research is not settled. The main tenets, the prohibition against harming or destroying others (ahimsa) and the pursuit of knowledge (prajña) and compassion (karuna), leave Buddhist scholars and communities divided. [56] Some scholars argue stem cell research is in accordance with the Buddhist tenet of seeking knowledge and ending human suffering. Others feel it violates the principle of not harming others. Finding the balance between these two points relies on the karmic burden of Buddhist morality. In trying to prevent ahimsa towards the embryo, Buddhist scholars suggest that to comply with Buddhist tenets, research cannot be done as the embryo has personhood at the moment of conception and would reincarnate immediately, harming the individual's ability to build their karmic burden. [57] On the other hand, the Bodhisattvas, those considered to be on the path to enlightenment or Nirvana, have given organs and flesh to others to help alleviate grieving and to benefit all. [58] Acceptance varies on applied beliefs and interpretations.

Catholicism does not support embryonic stem cell research, as it entails creation or destruction of human embryos. This destruction conflicts with the belief in the sanctity of life. For example, in the Old Testament, Genesis describes humanity as being created in God’s image and multiplying on the Earth, referencing the sacred rights to human conception and the purpose of development and life. In the Ten Commandments, the tenet that one should not kill has numerous interpretations where killing could mean murder or shedding of the sanctity of life, demonstrating the high value of human personhood. In other books, the theological conception of when life begins is interpreted as in utero, [59] highlighting the inviolability of life and its formation in vivo to make a religious point for accepting such research as relatively limited, if at all. [60] The Vatican has released ethical directives to help apply a theological basis to modern-day conflicts. The Magisterium of the Church states that “unless there is a moral certainty of not causing harm,” experimentation on fetuses, fertilized cells, stem cells, or embryos constitutes a crime. [61] Such procedures would not respect the human person who exists at these stages, according to Catholicism. Damages to the embryo are considered gravely immoral and illicit. [62] Although the Catholic Church officially opposes abortion, surveys demonstrate that many Catholic people hold pro-choice views, whether due to the context of conception, stage of pregnancy, threat to the mother’s life, or for other reasons, demonstrating that practicing members can also accept some but not all tenets. [63]

Some major Jewish denominations, such as the Reform, Conservative, and Reconstructionist movements, are open to supporting ESC use or research as long as it is for saving a life. [64] Within Judaism, the Talmud, or study, gives personhood to the child at birth and emphasizes that life does not begin at conception: [65]

“If she is found pregnant, until the fortieth day it is mere fluid,” [66]

Whereas most religions prioritize the status of human embryos, the Halakah (Jewish religious law) states that to save one life, most other religious laws can be ignored because it is in pursuit of preservation. [67] Stem cell research is accepted due to application of these religious laws.

We recognize that all religions contain subsets and sects. The variety of environmental and cultural differences within religious groups requires further analysis to respect the flexibility of religious thoughts and practices. We make no presumptions that all cultures require notions of autonomy or morality as under the common morality theory , which asserts a set of universal moral norms that all individuals share provides moral reasoning and guides ethical decisions. [68] We only wish to show that the interaction with morality varies between cultures and countries.

III.     A Flexible Ethical Approach

The plurality of different moral approaches described above demonstrates that there can be no universally acceptable uniform law for ESC on a global scale. Instead of developing one standard, flexible ethical applications must be continued. We recommend local guidelines that incorporate important cultural and ethical priorities.

While the Declaration of Helsinki is more relevant to people in clinical trials receiving ESC products, in keeping with the tradition of protections for research subjects, consent of the donor is an ethical requirement for ESC donation in many jurisdictions including the US, Canada, and Europe. [69] The Declaration of Helsinki provides a reference point for regulatory standards and could potentially be used as a universal baseline for obtaining consent prior to gamete or embryo donation.

For instance, in Columbia University’s egg donor program for stem cell research, donors followed standard screening protocols and “underwent counseling sessions that included information as to the purpose of oocyte donation for research, what the oocytes would be used for, the risks and benefits of donation, and process of oocyte stimulation” to ensure transparency for consent. [70] The program helped advance stem cell research and provided clear and safe research methods with paid participants. Though paid participation or covering costs of incidental expenses may not be socially acceptable in every culture or context, [71] and creating embryos for ESC research is illegal in many jurisdictions, Columbia’s program was effective because of the clear and honest communications with donors, IRBs, and related stakeholders.  This example demonstrates that cultural acceptance of scientific research and of the idea that an egg or embryo does not have personhood is likely behind societal acceptance of donating eggs for ESC research. As noted, many countries do not permit the creation of embryos for research.

Proper communication and education regarding the process and purpose of stem cell research may bolster comprehension and garner more acceptance. “Given the sensitive subject material, a complete consent process can support voluntary participation through trust, understanding, and ethical norms from the cultures and morals participants value. This can be hard for researchers entering countries of different socioeconomic stability, with different languages and different societal values. [72]

An adequate moral foundation in medical ethics is derived from the cultural and religious basis that informs knowledge and actions. [73] Understanding local cultural and religious values and their impact on research could help researchers develop humility and promote inclusion.

IV.     Concerns

Some may argue that if researchers all adhere to one ethics standard, protection will be satisfied across all borders, and the global public will trust researchers. However, defining what needs to be protected and how to define such research standards is very specific to the people to which standards are applied. We suggest that applying one uniform guide cannot accurately protect each individual because we all possess our own perceptions and interpretations of social values. [74] Therefore, the issue of not adjusting to the moral pluralism between peoples in applying one standard of ethics can be resolved by building out ethics models that can be adapted to different cultures and religions.

Other concerns include medical tourism, which may promote health inequities. [75] Some countries may develop and approve products derived from ESC research before others, compromising research ethics or drug approval processes. There are also concerns about the sale of unauthorized stem cell treatments, for example, those without FDA approval in the United States. Countries with robust research infrastructures may be tempted to attract medical tourists, and some customers will have false hopes based on aggressive publicity of unproven treatments. [76]

For example, in China, stem cell clinics can market to foreign clients who are not protected under the regulatory regimes. Companies employ a marketing strategy of “ethically friendly” therapies. Specifically, in the case of Beike, China’s leading stem cell tourism company and sprouting network, ethical oversight of administrators or health bureaus at one site has “the unintended consequence of shifting questionable activities to another node in Beike's diffuse network.” [77] In contrast, Jordan is aware of stem cell research’s potential abuse and its own status as a “health-care hub.” Jordan’s expanded regulations include preserving the interests of individuals in clinical trials and banning private companies from ESC research to preserve transparency and the integrity of research practices. [78]

The social priorities of the community are also a concern. The ISSCR explicitly states that guidelines “should be periodically revised to accommodate scientific advances, new challenges, and evolving social priorities.” [79] The adaptable ethics model extends this consideration further by addressing whether research is warranted given the varying degrees of socioeconomic conditions, political stability, and healthcare accessibilities and limitations. An ethical approach would require discussion about resource allocation and appropriate distribution of funds. [80]

While some religions emphasize the sanctity of life from conception, which may lead to public opposition to ESC research, others encourage ESC research due to its potential for healing and alleviating human pain. Many countries have special regulations that balance local views on embryonic personhood, the benefits of research as individual or societal goods, and the protection of human research subjects. To foster understanding and constructive dialogue, global policy frameworks should prioritize the protection of universal human rights, transparency, and informed consent. In addition to these foundational global policies, we recommend tailoring local guidelines to reflect the diverse cultural and religious perspectives of the populations they govern. Ethics models should be adapted to local populations to effectively establish research protections, growth, and possibilities of stem cell research.

For example, in countries with strong beliefs in the moral sanctity of embryos or heavy religious restrictions, an adaptive model can allow for discussion instead of immediate rejection. In countries with limited individual rights and voice in science policy, an adaptive model ensures cultural, moral, and religious views are taken into consideration, thereby building social inclusion. While this ethical consideration by the government may not give a complete voice to every individual, it will help balance policies and maintain the diverse perspectives of those it affects. Embracing an adaptive ethics model of ESC research promotes open-minded dialogue and respect for the importance of human belief and tradition. By actively engaging with cultural and religious values, researchers can better handle disagreements and promote ethical research practices that benefit each society.

This brief exploration of the religious and cultural differences that impact ESC research reveals the nuances of relative ethics and highlights a need for local policymakers to apply a more intense adaptive model.

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[36] Association for the Advancement of Blood and Biotherapies.  https://www.aabb.org/regulatory-and-advocacy/regulatory-affairs/regulatory-for-cellular-therapies/international-competent-authorities/saudi-arabia

[37] Alahmad, G., Aljohani, S., & Najjar, M. F. (2020). Ethical challenges regarding the use of stem cells: Interviews with researchers from Saudi Arabia.  BMC medical ethics ,  21 (1), 35. https://doi.org/10.1186/s12910-020-00482-6

[38] Alahmad, G., Aljohani, S., & Najjar, M. F. (2020). Ethical challenges regarding the use of stem cells: Interviews with researchers from Saudi Arabia. BMC medical ethics , 21(1), 35. https://doi.org/10.1186/s12910-020-00482-6

Culturally, autonomy practices follow a relational autonomy approach based on a paternalistic deontological health care model. The adherence to strict international research policies and religious pillars within the regulatory environment is a great foundation for research ethics. However, there is a need to develop locally targeted ethics approaches for research (as called for in Alahmad, G., Aljohani, S., & Najjar, M. F. (2020). Ethical challenges regarding the use of stem cells: interviews with researchers from Saudi Arabia. BMC medical ethics, 21(1), 35. https://doi.org/10.1186/s12910-020-00482-6), this decision-making approach may help advise a research decision model. For more on the clinical cultural autonomy approaches, see: Alabdullah, Y. Y., Alzaid, E., Alsaad, S., Alamri, T., Alolayan, S. W., Bah, S., & Aljoudi, A. S. (2022). Autonomy and paternalism in Shared decision‐making in a Saudi Arabian tertiary hospital: A cross‐sectional study. Developing World Bioethics , 23 (3), 260–268. https://doi.org/10.1111/dewb.12355 ; Bukhari, A. A. (2017). Universal Principles of Bioethics and Patient Rights in Saudi Arabia (Doctoral dissertation, Duquesne University). https://dsc.duq.edu/etd/124; Ladha, S., Nakshawani, S. A., Alzaidy, A., & Tarab, B. (2023, October 26). Islam and Bioethics: What We All Need to Know . Columbia University School of Professional Studies. https://sps.columbia.edu/events/islam-and-bioethics-what-we-all-need-know

[39] Ababneh, M. A., Al-Azzam, S. I., Alzoubi, K., Rababa’h, A., & Al Demour, S. (2021). Understanding and attitudes of the Jordanian public about clinical research ethics.  Research Ethics ,  17 (2), 228-241.  https://doi.org/10.1177/1747016120966779

[40] Ababneh, M. A., Al-Azzam, S. I., Alzoubi, K., Rababa’h, A., & Al Demour, S. (2021). Understanding and attitudes of the Jordanian public about clinical research ethics.  Research Ethics ,  17 (2), 228-241.  https://doi.org/10.1177/1747016120966779

[41] Dajani, R. (2014). Jordan’s stem-cell law can guide the Middle East.  Nature  510, 189. https://doi.org/10.1038/510189a

[42] Dajani, R. (2014). Jordan’s stem-cell law can guide the Middle East.  Nature  510, 189. https://doi.org/10.1038/510189a

[43] The EU’s definition of autonomy relates to the capacity for creating ideas, moral insight, decisions, and actions without constraint, personal responsibility, and informed consent. However, the EU views autonomy as not completely able to protect individuals and depends on other principles, such as dignity, which “expresses the intrinsic worth and fundamental equality of all human beings.” Rendtorff, J.D., Kemp, P. (2019). Four Ethical Principles in European Bioethics and Biolaw: Autonomy, Dignity, Integrity and Vulnerability. In: Valdés, E., Lecaros, J. (eds) Biolaw and Policy in the Twenty-First Century. International Library of Ethics, Law, and the New Medicine, vol 78. Springer, Cham. https://doi.org/10.1007/978-3-030-05903-3_3

[44] Council of Europe. Convention for the protection of Human Rights and Dignity of the Human Being with regard to the Application of Biology and Medicine: Convention on Human Rights and Biomedicine (ETS No. 164) https://www.coe.int/en/web/conventions/full-list?module=treaty-detail&treatynum=164 (forbidding the creation of embryos for research purposes only, and suggests embryos in vitro have protections.); Also see Drabiak-Syed B. K. (2013). New President, New Human Embryonic Stem Cell Research Policy: Comparative International Perspectives and Embryonic Stem Cell Research Laws in France.  Biotechnology Law Report ,  32 (6), 349–356. https://doi.org/10.1089/blr.2013.9865

[45] Rendtorff, J.D., Kemp, P. (2019). Four Ethical Principles in European Bioethics and Biolaw: Autonomy, Dignity, Integrity and Vulnerability. In: Valdés, E., Lecaros, J. (eds) Biolaw and Policy in the Twenty-First Century. International Library of Ethics, Law, and the New Medicine, vol 78. Springer, Cham. https://doi.org/10.1007/978-3-030-05903-3_3

[46] Tomuschat, C., Currie, D. P., Kommers, D. P., & Kerr, R. (Trans.). (1949, May 23). Basic law for the Federal Republic of Germany. https://www.btg-bestellservice.de/pdf/80201000.pdf

[47] Regulation of Stem Cell Research in Germany . Eurostemcell. (2017, April 26). https://www.eurostemcell.org/regulation-stem-cell-research-germany

[48] Regulation of Stem Cell Research in Finland . Eurostemcell. (2017, April 26). https://www.eurostemcell.org/regulation-stem-cell-research-finland

[49] Regulation of Stem Cell Research in Spain . Eurostemcell. (2017, April 26). https://www.eurostemcell.org/regulation-stem-cell-research-spain

[50] Some sources to consider regarding ethics models or regulatory oversights of other cultures not covered:

Kara MA. Applicability of the principle of respect for autonomy: the perspective of Turkey. J Med Ethics. 2007 Nov;33(11):627-30. doi: 10.1136/jme.2006.017400. PMID: 17971462; PMCID: PMC2598110.

Ugarte, O. N., & Acioly, M. A. (2014). The principle of autonomy in Brazil: one needs to discuss it ...  Revista do Colegio Brasileiro de Cirurgioes ,  41 (5), 374–377. https://doi.org/10.1590/0100-69912014005013

Bharadwaj, A., & Glasner, P. E. (2012). Local cells, global science: The rise of embryonic stem cell research in India . Routledge.

For further research on specific European countries regarding ethical and regulatory framework, we recommend this database: Regulation of Stem Cell Research in Europe . Eurostemcell. (2017, April 26). https://www.eurostemcell.org/regulation-stem-cell-research-europe   

[51] Klitzman, R. (2006). Complications of culture in obtaining informed consent. The American Journal of Bioethics, 6(1), 20–21. https://doi.org/10.1080/15265160500394671 see also: Ekmekci, P. E., & Arda, B. (2017). Interculturalism and Informed Consent: Respecting Cultural Differences without Breaching Human Rights.  Cultura (Iasi, Romania) ,  14 (2), 159–172.; For why trust is important in research, see also: Gray, B., Hilder, J., Macdonald, L., Tester, R., Dowell, A., & Stubbe, M. (2017). Are research ethics guidelines culturally competent?  Research Ethics ,  13 (1), 23-41.  https://doi.org/10.1177/1747016116650235

[52] The Qur'an  (M. Khattab, Trans.). (1965). Al-Mu’minun, 23: 12-14. https://quran.com/23

[53] Lenfest, Y. (2017, December 8). Islam and the beginning of human life . Bill of Health. https://blog.petrieflom.law.harvard.edu/2017/12/08/islam-and-the-beginning-of-human-life/

[54] Aksoy, S. (2005). Making regulations and drawing up legislation in Islamic countries under conditions of uncertainty, with special reference to embryonic stem cell research. Journal of Medical Ethics , 31: 399-403.; see also: Mahmoud, Azza. "Islamic Bioethics: National Regulations and Guidelines of Human Stem Cell Research in the Muslim World." Master's thesis, Chapman University, 2022. https://doi.org/10.36837/ chapman.000386

[55] Rashid, R. (2022). When does Ensoulment occur in the Human Foetus. Journal of the British Islamic Medical Association , 12 (4). ISSN 2634 8071. https://www.jbima.com/wp-content/uploads/2023/01/2-Ethics-3_-Ensoulment_Rafaqat.pdf.

[56] Sivaraman, M. & Noor, S. (2017). Ethics of embryonic stem cell research according to Buddhist, Hindu, Catholic, and Islamic religions: perspective from Malaysia. Asian Biomedicine,8(1) 43-52.  https://doi.org/10.5372/1905-7415.0801.260

[57] Jafari, M., Elahi, F., Ozyurt, S. & Wrigley, T. (2007). 4. Religious Perspectives on Embryonic Stem Cell Research. In K. Monroe, R. Miller & J. Tobis (Ed.),  Fundamentals of the Stem Cell Debate: The Scientific, Religious, Ethical, and Political Issues  (pp. 79-94). Berkeley: University of California Press.  https://escholarship.org/content/qt9rj0k7s3/qt9rj0k7s3_noSplash_f9aca2e02c3777c7fb76ea768ba458f0.pdf https://doi.org/10.1525/9780520940994-005

[58] Lecso, P. A. (1991). The Bodhisattva Ideal and Organ Transplantation.  Journal of Religion and Health ,  30 (1), 35–41. http://www.jstor.org/stable/27510629 ; Bodhisattva, S. (n.d.). The Key of Becoming a Bodhisattva . A Guide to the Bodhisattva Way of Life. http://www.buddhism.org/Sutras/2/BodhisattvaWay.htm

[59] There is no explicit religious reference to when life begins or how to conduct research that interacts with the concept of life. However, these are relevant verses pertaining to how the fetus is viewed. (( King James Bible . (1999). Oxford University Press. (original work published 1769))

Jerimiah 1: 5 “Before I formed thee in the belly I knew thee; and before thou camest forth out of the womb I sanctified thee…”

In prophet Jerimiah’s insight, God set him apart as a person known before childbirth, a theme carried within the Psalm of David.

Psalm 139: 13-14 “…Thou hast covered me in my mother's womb. I will praise thee; for I am fearfully and wonderfully made…”

These verses demonstrate David’s respect for God as an entity that would know of all man’s thoughts and doings even before birth.

[60] It should be noted that abortion is not supported as well.

[61] The Vatican. (1987, February 22). Instruction on Respect for Human Life in Its Origin and on the Dignity of Procreation Replies to Certain Questions of the Day . Congregation For the Doctrine of the Faith. https://www.vatican.va/roman_curia/congregations/cfaith/documents/rc_con_cfaith_doc_19870222_respect-for-human-life_en.html

[62] The Vatican. (2000, August 25). Declaration On the Production and the Scientific and Therapeutic Use of Human Embryonic Stem Cells . Pontifical Academy for Life. https://www.vatican.va/roman_curia/pontifical_academies/acdlife/documents/rc_pa_acdlife_doc_20000824_cellule-staminali_en.html ; Ohara, N. (2003). Ethical Consideration of Experimentation Using Living Human Embryos: The Catholic Church’s Position on Human Embryonic Stem Cell Research and Human Cloning. Department of Obstetrics and Gynecology . Retrieved from https://article.imrpress.com/journal/CEOG/30/2-3/pii/2003018/77-81.pdf.

[63] Smith, G. A. (2022, May 23). Like Americans overall, Catholics vary in their abortion views, with regular mass attenders most opposed . Pew Research Center. https://www.pewresearch.org/short-reads/2022/05/23/like-americans-overall-catholics-vary-in-their-abortion-views-with-regular-mass-attenders-most-opposed/

[64] Rosner, F., & Reichman, E. (2002). Embryonic stem cell research in Jewish law. Journal of halacha and contemporary society , (43), 49–68.; Jafari, M., Elahi, F., Ozyurt, S. & Wrigley, T. (2007). 4. Religious Perspectives on Embryonic Stem Cell Research. In K. Monroe, R. Miller & J. Tobis (Ed.),  Fundamentals of the Stem Cell Debate: The Scientific, Religious, Ethical, and Political Issues  (pp. 79-94). Berkeley: University of California Press.  https://escholarship.org/content/qt9rj0k7s3/qt9rj0k7s3_noSplash_f9aca2e02c3777c7fb76ea768ba458f0.pdf https://doi.org/10.1525/9780520940994-005

[65] Schenker J. G. (2008). The beginning of human life: status of embryo. Perspectives in Halakha (Jewish Religious Law).  Journal of assisted reproduction and genetics ,  25 (6), 271–276. https://doi.org/10.1007/s10815-008-9221-6

[66] Ruttenberg, D. (2020, May 5). The Torah of Abortion Justice (annotated source sheet) . Sefaria. https://www.sefaria.org/sheets/234926.7?lang=bi&with=all&lang2=en

[67] Jafari, M., Elahi, F., Ozyurt, S. & Wrigley, T. (2007). 4. Religious Perspectives on Embryonic Stem Cell Research. In K. Monroe, R. Miller & J. Tobis (Ed.),  Fundamentals of the Stem Cell Debate: The Scientific, Religious, Ethical, and Political Issues  (pp. 79-94). Berkeley: University of California Press.  https://escholarship.org/content/qt9rj0k7s3/qt9rj0k7s3_noSplash_f9aca2e02c3777c7fb76ea768ba458f0.pdf https://doi.org/10.1525/9780520940994-005

[68] Gert, B. (2007). Common morality: Deciding what to do . Oxford Univ. Press.

[69] World Medical Association (2013). World Medical Association Declaration of Helsinki: ethical principles for medical research involving human subjects. JAMA , 310(20), 2191–2194. https://doi.org/10.1001/jama.2013.281053 Declaration of Helsinki – WMA – The World Medical Association .; see also: National Commission for the Protection of Human Subjects of Biomedical and Behavioral Research. (1979).  The Belmont report: Ethical principles and guidelines for the protection of human subjects of research . U.S. Department of Health and Human Services.  https://www.hhs.gov/ohrp/regulations-and-policy/belmont-report/read-the-belmont-report/index.html

[70] Zakarin Safier, L., Gumer, A., Kline, M., Egli, D., & Sauer, M. V. (2018). Compensating human subjects providing oocytes for stem cell research: 9-year experience and outcomes.  Journal of assisted reproduction and genetics ,  35 (7), 1219–1225. https://doi.org/10.1007/s10815-018-1171-z https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6063839/ see also: Riordan, N. H., & Paz Rodríguez, J. (2021). Addressing concerns regarding associated costs, transparency, and integrity of research in recent stem cell trial. Stem Cells Translational Medicine , 10 (12), 1715–1716. https://doi.org/10.1002/sctm.21-0234

[71] Klitzman, R., & Sauer, M. V. (2009). Payment of egg donors in stem cell research in the USA.  Reproductive biomedicine online ,  18 (5), 603–608. https://doi.org/10.1016/s1472-6483(10)60002-8

[72] Krosin, M. T., Klitzman, R., Levin, B., Cheng, J., & Ranney, M. L. (2006). Problems in comprehension of informed consent in rural and peri-urban Mali, West Africa.  Clinical trials (London, England) ,  3 (3), 306–313. https://doi.org/10.1191/1740774506cn150oa

[73] Veatch, Robert M.  Hippocratic, Religious, and Secular Medical Ethics: The Points of Conflict . Georgetown University Press, 2012.

[74] Msoroka, M. S., & Amundsen, D. (2018). One size fits not quite all: Universal research ethics with diversity.  Research Ethics ,  14 (3), 1-17.  https://doi.org/10.1177/1747016117739939

[75] Pirzada, N. (2022). The Expansion of Turkey’s Medical Tourism Industry.  Voices in Bioethics ,  8 . https://doi.org/10.52214/vib.v8i.9894

[76] Stem Cell Tourism: False Hope for Real Money . Harvard Stem Cell Institute (HSCI). (2023). https://hsci.harvard.edu/stem-cell-tourism , See also: Bissassar, M. (2017). Transnational Stem Cell Tourism: An ethical analysis.  Voices in Bioethics ,  3 . https://doi.org/10.7916/vib.v3i.6027

[77] Song, P. (2011) The proliferation of stem cell therapies in post-Mao China: problematizing ethical regulation,  New Genetics and Society , 30:2, 141-153, DOI:  10.1080/14636778.2011.574375

[78] Dajani, R. (2014). Jordan’s stem-cell law can guide the Middle East.  Nature  510, 189. https://doi.org/10.1038/510189a

[79] International Society for Stem Cell Research. (2024). Standards in stem cell research . International Society for Stem Cell Research. https://www.isscr.org/guidelines/5-standards-in-stem-cell-research

[80] Benjamin, R. (2013). People’s science bodies and rights on the Stem Cell Frontier . Stanford University Press.

Mifrah Hayath

SM Candidate Harvard Medical School, MS Biotechnology Johns Hopkins University

Olivia Bowers

MS Bioethics Columbia University (Disclosure: affiliated with Voices in Bioethics)

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This work is licensed under a Creative Commons Attribution 4.0 International License .

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When Online Content Disappears

38% of webpages that existed in 2013 are no longer accessible a decade later, table of contents.

• Webpages from the last decade
• Links on government websites
• Links on news websites
• Reference links on Wikipedia
• Posts on Twitter
• Acknowledgments
• Collection and analysis of Twitter data
• Data collection for World Wide Web websites, government websites and news websites
• Data collection for Wikipedia source links
• Evaluating the status of pages and links
• Definition of links

Pew Research Center conducted the analysis to examine how often online content that once existed becomes inaccessible. One part of the study looks at a representative sample of webpages that existed over the past decade to see how many are still accessible today. For this analysis, we collected a sample of pages from the Common Crawl web repository for each year from 2013 to 2023. We then tried to access those pages to see how many still exist.

A second part of the study looks at the links on existing webpages to see how many of those links are still functional. We did this by collecting a large sample of pages from government websites, news websites and the online encyclopedia Wikipedia .

We identified relevant news domains using data from the audience metrics company comScore and relevant government domains (at multiple levels of government) using data from get.gov , the official administrator for the .gov domain. We collected the news and government pages via Common Crawl and the Wikipedia pages from an archive maintained by the Wikimedia Foundation . For each collection, we identified the links on those pages and followed them to their destination to see what share of those links point to sites that are no longer accessible.

A third part of the study looks at how often individual posts on social media sites are deleted or otherwise removed from public view. We did this by collecting a large sample of public tweets on the social media platform X (then known as Twitter) in real time using the Twitter Streaming API. We then tracked the status of those tweets for a period of three months using the Twitter Search API to monitor how many were still publicly available. Refer to the report methodology for more details.

The internet is an unimaginably vast repository of modern life, with hundreds of billions of indexed webpages. But even as users across the world rely on the web to access books, images, news articles and other resources, this content sometimes disappears from view.

A new Pew Research Center analysis shows just how fleeting online content actually is:

• A quarter of all webpages that existed at one point between 2013 and 2023 are no longer accessible, as of October 2023. In most cases, this is because an individual page was deleted or removed on an otherwise functional website.

• For older content, this trend is even starker. Some 38% of webpages that existed in 2013 are not available today, compared with 8% of pages that existed in 2023.

This “digital decay” occurs in many different online spaces. We examined the links that appear on government and news websites, as well as in the “References” section of Wikipedia pages as of spring 2023. This analysis found that:

• 23% of news webpages contain at least one broken link, as do 21% of webpages from government sites. News sites with a high level of site traffic and those with less are about equally likely to contain broken links. Local-level government webpages (those belonging to city governments) are especially likely to have broken links.
• 54% of Wikipedia pages contain at least one link in their “References” section that points to a page that no longer exists.

To see how digital decay plays out on social media, we also collected a real-time sample of tweets during spring 2023 on the social media platform X (then known as Twitter) and followed them for three months. We found that:

• Nearly one-in-five tweets are no longer publicly visible on the site just months after being posted. In 60% of these cases, the account that originally posted the tweet was made private, suspended or deleted entirely. In the other 40%, the account holder deleted the individual tweet, but the account itself still existed.
• Certain types of tweets tend to go away more often than others. More than 40% of tweets written in Turkish or Arabic are no longer visible on the site within three months of being posted. And tweets from accounts with the default profile settings are especially likely to disappear from public view.

How this report defines inaccessible links and webpages

There are many ways of defining whether something on the internet that used to exist is now inaccessible to people trying to reach it today. For instance, “inaccessible” could mean that:

• The page no longer exists on its host server, or the host server itself no longer exists. Someone visiting this type of page would typically receive a variation on the “404 Not Found” server error instead of the content they were looking for.
• The page address exists but its content has been changed – sometimes dramatically – from what it was originally.
• The page exists but certain users – such as those with blindness or other visual impairments – might find it difficult or impossible to read.

For this report, we focused on the first of these: pages that no longer exist. The other definitions of accessibility are beyond the scope of this research.

Our approach is a straightforward way of measuring whether something online is accessible or not. But even so, there is some ambiguity.

First, there are dozens of status codes indicating a problem that a user might encounter when they try to access a page. Not all of them definitively indicate whether the page is permanently defunct or just temporarily unavailable. Second, for security reasons, many sites actively try to prevent the sort of automated data collection that we used to test our full list of links.

For these reasons, we used the most conservative estimate possible for deciding whether a site was actually accessible or not. We counted pages as inaccessible only if they returned one of nine error codes that definitively indicate that the page and/or its host server no longer exist or have become nonfunctional – regardless of how they are being accessed, and by whom. The full list of error codes that we included in our definition are in the methodology .

Here are some of the findings from our analysis of digital decay in various online spaces.

To conduct this part of our analysis, we collected a random sample of just under 1 million webpages from the archives of Common Crawl , an internet archive service that periodically collects snapshots of the internet as it exists at different points in time. We sampled pages collected by Common Crawl each year from 2013 through 2023 (approximately 90,000 pages per year) and checked to see if those pages still exist today.

We found that 25% of all the pages we collected from 2013 through 2023 were no longer accessible as of October 2023. This figure is the sum of two different types of broken pages: 16% of pages are individually inaccessible but come from an otherwise functional root-level domain; the other 9% are inaccessible because their entire root domain is no longer functional.

Not surprisingly, the older snapshots in our collection had the largest share of inaccessible links. Of the pages collected from the 2013 snapshot, 38% were no longer accessible in 2023. But even for pages collected in the 2021 snapshot, about one-in-five were no longer accessible just two years later.

We sampled around 500,000 pages from government websites using the Common Crawl March/April 2023 snapshot of the internet, including a mix of different levels of government (federal, state, local and others). We found every link on each page and followed a random selection of those links to their destination to see if the pages they refer to still exist.

Across the government websites we sampled, there were 42 million links. The vast majority of those links (86%) were internal, meaning they link to a different page on the same website. An explainer resource on the IRS website that links to other documents or forms on the IRS site would be an example of an internal link.

Around three-quarters of government webpages we sampled contained at least one on-page link. The typical (median) page contains 50 links, but many pages contain far more. A page in the 90th percentile contains 190 links, and a page in the 99th percentile (that is, the top 1% of pages by number of links) has 740 links.

Other facts about government webpage links:

• The vast majority go to secure HTTP pages (and have a URL starting with “https://”).
• 6% go to a static file, like a PDF document.
• 16% now redirect to a different URL than the one they originally pointed to.

When we followed these links, we found that 6% point to pages that are no longer accessible. Similar shares of internal and external links are no longer functional.

Overall, 21% of all the government webpages we examined contained at least one broken link. Across every level of government we looked at, there were broken links on at least 14% of pages; city government pages had the highest rates of broken links.

For this analysis, we sampled 500,000 pages from 2,063 websites classified as “News/Information” by the audience metrics firm comScore. The pages were collected from the Common Crawl March/April 2023 snapshot of the internet.

Across the news sites sampled, this collection contained more than 14 million links pointing to an outside website. 1 Some 94% of these pages contain at least one external-facing link. The median page contains 20 links, and pages in the top 10% by link count have 56 links.

Like government websites, the vast majority of these links go to secure HTTP pages (those with a URL beginning with “https://”). Around 12% of links on these news sites point to a static file, like a PDF document. And 32% of links on news sites redirected to a different URL than the one they originally pointed to – slightly less than the 39% of external links on government sites that redirect.

When we tracked these links to their destination, we found that 5% of all links on news site pages are no longer accessible. And 23% of all the pages we sampled contained at least one broken link.

Broken links are about as prevalent on the most-trafficked news websites as they are on the least-trafficked sites. Some 25% of pages on news websites in the top 20% by site traffic have at least one broken link. That is nearly identical to the 26% of sites in the bottom 20% by site traffic.

For this analysis, we collected a random sample of 50,000 English-language Wikipedia pages and examined the links in their “References” section. The vast majority of these pages (82%) contain at least one reference link – that is, one that directs the reader to a webpage other than Wikipedia itself.

In total, there are just over 1 million reference links across all the pages we collected. The typical page has four reference links.

The analysis indicates that 11% of all references linked on Wikipedia are no longer accessible. On about 2% of source pages containing reference links, every link on the page was broken or otherwise inaccessible, while another 53% of pages contained at least one broken link.

For this analysis, we collected nearly 5 million tweets posted from March 8 to April 27, 2023, on the social media platform X, which at the time was known as Twitter. We did this using Twitter’s Streaming API, collecting 3,000 public tweets every 30 minutes in real time. This provided us with a representative sample of all tweets posted on the platform during that period. We monitored those tweets until June 15, 2023, and checked each day to see if they were still available on the site or not.

At the end of the observation period, we found that 18% of the tweets from our initial collection window were no longer publicly visible on the site . In a majority of cases, this was because the account that originally posted the tweet was made private, suspended or deleted entirely. For the remaining tweets, the account that posted the tweet was still visible on the site, but the individual tweet had been deleted.

Which tweets tend to disappear?

Tweets were especially likely to be deleted or removed over the course of our collection period if they were:

• Written in certain languages. Nearly half of all the Turkish-language tweets we collected – and a slightly smaller share of those written in Arabic – were no longer available at the end of the tracking period.
• Posted by accounts using the site’s default profile settings. More than half of tweets from accounts using the default profile image were no longer available at the end of the tracking period, as were more than a third from accounts with a default bio field. Tweets from these accounts tend to disappear because the entire account has been deleted or made private, as opposed to the individual tweet being deleted.
• Posted by unverified accounts.

We also found that removed or deleted tweets tended to come from newer accounts with relatively few followers and modest activityon the site. On average, tweets that were no longer visible on the site were posted by accounts around eight months younger than those whose tweets stayed on the site.

And when we analyzed the types of tweets that were no longer available, we found that retweets, quote tweets and original tweets did not differ much from the overall average. But replies were relatively unlikely to be removed – just 12% of replies were inaccessible at the end of our monitoring period.

Most tweets that are removed from the site tend to disappear soon after being posted. In addition to looking at how many tweets from our collection were still available at the end of our tracking period, we conducted a survival analysis to see how long these tweets tended to remain available. We found that:

• 1% of tweets are removed within one hour
• 3% within a day
• 10% within a week
• 15% within a month

Put another way: Half of tweets that are eventually removed from the platform are unavailable within the first six days of being posted. And 90% of these tweets are unavailable within 46 days.

Tweets don’t always disappear forever, though. Some 6% of the tweets we collected disappeared and then became available again at a later point. This could be due to an account going private and then returning to public status, or to the account being suspended and later reinstated. Of those “reappeared” tweets, the vast majority (90%) were still accessible on Twitter at the end of the monitoring period.

• For our analysis of news sites, we did not collect or check the functionality of internal-facing on-page links – those that point to another page on the same root domain. ↩

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• 09 May 2024

Cubic millimetre of brain mapped in spectacular detail

• Carissa Wong

You can also search for this author in PubMed   Google Scholar

Rendering based on electron-microscope data, showing the positions of neurons in a fragment of the brain cortex. Neurons are coloured according to size. Credit: Google Research & Lichtman Lab (Harvard University). Renderings by D. Berger (Harvard University)

Researchers have mapped a tiny piece of the human brain in astonishing detail. The resulting cell atlas, which was described today in Science 1 and is available online , reveals new patterns of connections between brain cells called neurons, as well as cells that wrap around themselves to form knots, and pairs of neurons that are almost mirror images of each other.

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doi: https://doi.org/10.1038/d41586-024-01387-9

Shapson-Coe, A. et al. Science 384 , eadk4858 (2024).

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High‑quality health services through Medicare

Boosting access to essential health services

Building a better healthcare system

The Government is investing $2.8 billion to continue its commitment to strengthen Medicare. This includes the $1.2 billion package to address pressures facing the health system, which provides:

• $882.2 million to support older Australians avoid hospital admission, be discharged from hospital earlier and improve their transition out of hospital to other appropriate care.
• $227 million to deliver a further 29 Medicare Urgent Care Clinics and boost support for regional and remote clinics. This will increase the total number of clinics across Australia to 87. Since commencing last year, existing clinics have already provided almost 400,000 bulk‑billed visits.
• $90 million to address health workforce shortages by making it simpler and quicker for international health practitioners to work in Australia.

Rohan’s daughter Zoya has been  off school with a runny nose and a cough. By 6pm, she is lethargic and has a fever.

Rohan is concerned because his regular GP is now closed. Instead of waiting for hours at the emergency department, he takes Zoya to a Medicare Urgent Care Clinic, without having to make an appointment. 

During the bulk billed visit, Zoya is diagnosed with an infection by the doctor and prescribed appropriate medication. Rohan and Zoya leave within an hour of arrival. Zoya makes a full recovery.

Improving health outcomes

Almost half of Australians live with a chronic condition. This Budget will provide $141.1 million for research and services for people living with chronic conditions, including bowel and skin cancer, diabetes and dementia.

To improve health outcomes, the Government is providing:

• Support for Australians to enjoy healthier, more active lives by investing $132.7 million in sport participation and performance programs.
• $825.7 million to ensure Australians can continue to access testing for and vaccinations against COVID‑19. The Government is also ensuring continued access to oral antiviral medicines on the Pharmaceutical Benefits Scheme.
• $41.6 million over two years to continue funding for alcohol and other drug treatment and support services, including the Good Sports alcohol management program for community sporting clubs.

The Government is allocating an additional $411.6 million (for a total $1.6 billion over 13 years) through the Medical Research Future Fund to continue existing research and introduce two new research missions for low‑survival cancers and reducing health inequities.

Improving access to medicines

The Government is investing $3.4 billion for new and amended listings to the Pharmaceutical Benefits Scheme, which means eligible patients can save on treatment costs.

By expanding the Closing the Gap Pharmaceutical Benefits Scheme Co‑payment Program, eligible First Nations patients will have free or cheaper access to all Pharmaceutical Benefits Scheme medicines.

Australians will benefit from $141.1 million to support and expand the National Immunisation Program.

Mental health support

The Government’s $888.1 million mental health package over eight years will help people get the care they need, while relieving pressure on the Better Access initiative and making it easier to access services.

A free, low‑intensity digital service will be established to address the gap for people with mild mental health concerns. From 1 January 2026, Australians will be able to access the service without a referral and receive timely, high‑quality mental health support. Once fully established, 150,000 people are expected to make use of this service each year.

The Government is improving access to free mental health services through a network of walk‑in Medicare Mental Health Centres, built on the established Head to Health network. The upgraded national network of 61 Medicare Mental Health Centres will open by 30 June 2026. They will provide clinical services for adults with moderate‑to‑severe mental health needs.

For Australians with complex mental health needs, funding will be provided for Primary Health Networks to partner with GPs to deliver multidisciplinary, wraparound support services and care coordination.

Improving the aged care system

Providing quality care

The Budget provides $2.2 billion to deliver aged care reforms and continue implementing recommendations from the Royal Commission into Aged Care Quality and Safety.

The new Aged Care Act will put the rights and needs of older people at the centre of the aged care system. The new Act will provide the framework for fundamental change within the aged care sector.

More Home Care Packages

The Government is investing $531.4 million to release an additional 24,100 Home Care Packages in 2024–25. This will help reduce average wait times and enable people to age at home if they prefer to do so.

Improving aged care regulation

Funding of $110.9 million over four years will support an increase in the Aged Care Quality and Safety Commission’s regulatory capabilities.

The Government is investing $1.2 billion in critical digital systems to support the introduction of the new Aged Care Act and contemporary IT systems.

The My Aged Care Contact Centre will receive $37 million to reduce call‑waiting times for people seeking information and access to aged care.

Higher wages for aged care workers

The Government has committed to fund the Fair Work Commission decision to increase the award wage for direct and indirect aged care workers once the final determination is made. This will build on the $11.3 billion already allocated to support the interim 15 per cent wage increase for aged care workers.

The Government is providing $87.2 million for workforce initiatives to attract nurses and other workers into aged care.

Reforming the disability sector

Better and more sustainable services

Getting the National Disability Insurance Scheme (NDIS) back on track

A further $468.7 million is being provided to support people with disability and get the NDIS back on track. This includes:

• $214 million over two years to fight fraud and to co‑design NDIS reforms with people with disability, announced earlier this year
• $160.7 million to upgrade the NDIS Quality and Safeguards Commission’s information technology
• $45.5 million to establish a NDIS Evidence Advisory Committee
• $20 million to start consultation and design on reforms to help NDIS participants and people with disability navigate services.

This builds on $732.9 million provided in the 2023–24 Budget.

In December 2023, National Cabinet agreed to work together to improve the experience of participants and restore the original intent of the Scheme to support people with permanent and significant disability, within a broader ecosystem of supports. This builds on an earlier decision by National Cabinet to ensure Scheme sustainability and achieve an 8 per cent growth target by 1 July 2026, with further moderation as the NDIS matures.

Improving employment for people with disability

A $227.6 million investment will support a new specialised disability employment program to replace the existing Disability Employment Services program by 1 July 2025. This includes a modern digital platform for providers and participants. These reforms will support more people with disability into sustainable work, through a program with greater flexibility, increased individual supports, and better service quality. Eligibility will be expanded to include volunteers outside the income support system and those with less than eight hours per week work capacity.

Delivering essential services

Investing in reliability and security

Strengthening resourcing for Services Australia

The Government is delivering safer and more efficient government services for all Australians.

A $1.8 billion provision will support delivery of customer and payment services. This includes funding for frontline and service delivery staff to manage claims, respond to natural disasters and improve the cyber security environment. The Government is providing $314.1 million over two years to strengthen safety and security at Services Australia centres.

The Government is investing $580.3 million over four years and $139.6 million per year ongoing to sustain the myGov platform and identify potential enhancements. A further $50 million will improve usability, safety and security of the myGov platform and ensure Services Australia can support people to protect their information and privacy.

Strengthening the Australian Taxation Office (ATO) against fraud

There will be $187.4 million to better protect taxpayer data and Commonwealth revenue against fraudulent attacks on the tax and superannuation systems. Funding will upgrade the ATO’s information and communications technologies and increase fraud prevention capabilities to manage increasing risk, prevent revenue loss, and support victims of fraud and cyber crime.

Looking after our veterans

Veterans’ claims processing is prioritised with an additional $186 million for staffing resources and $8.4 million to improve case management and protect against cyber risk. The Government will provide $222 million to harmonise veterans’ compensation and rehabilitation legislation.

A further $48.4 million will be available for Veterans’ Home Care and Community Nursing programs and $10.2 million to provide access to funded medical treatment for ill and injured veterans while their claims for liability are processed.

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