arXiv is a free distribution service and an open-access archive for nearly 2.4 million scholarly articles in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics. Materials on this site are not peer-reviewed by arXiv.

BASE is one of the world's most voluminous search engines especially for academic web resources. The index contains more than 400 million records from more than 11,000 content providers. You can access the full texts of about 60% of the indexed records for free (Open Access). Content providers by country.

CORE (COnnecting REpositories) provides a comprehensive bibliographic database of the world’s scholarly literature, collecting and indexing research from repositories and journals. CORE is a not-for-profit service dedicated to the open access mission and one of the signatories of the Principles of Open Scholarly Infrastructures POSI. Data providers.

Dimensions contains more than 100 million publications, ranging from articles published in scholarly journals, books and book chapters, to preprints and conference proceedings. All publications are contextualized with linked data sets, funding, publications, patents, clinical trials, and policy documents. It needs to set up a free account to access the database.

HAL est une archive ouverte multidisciplinaire permettant de partager en libre accès les résultats de recherche, publiés ou non. Elle est au service des chercheur.es affilié.es à des institutions académiques, qu’elles soient publiques ou privées. En France, HAL est l’archive nationale choisie par la communauté scientifique et universitaire française pour la diffusion ouverte de ses résultats de recherche. A propos de HAL.

The Lens serves integrated scholarly and patent knowledge as a public good to inform science and technology enabled problem solving.

Free, legal research articles delivered instantly or automatically requested from authors. Our sources include all of the aggregated repositories in the world, hybrid articles, open access journals, and those on authors personal pages. About Open Access Button.

Find open access graduate theses and dissertations published around the world.

An AI-driven research search engine allowing cross-disciplinary and scientificintent discovery, additionally providing access to the OpenAIRE Research Graph via open APIs. OpenAIRE has received funding from a series of EU funded projects.

Open textbooks are licensed by authors and publishers to be freely used and adapted. Download, edit and distribute them at no cost.

Paperity is the first multi-disciplinary aggregator of Open Access journals and papers, "gold" and "hybrid".

Semantic Scholar is a free, AI-powered research tool for scientific literature, based at Ai2 (a non-profit AI research institute). Publisher partners.

It harvests Open Access content from over 50,000 publishers and repositories, and make it easy to find, track, and use. Data sources.

Journals, Working Papers & Conferences in Business Studies and Economics.

EconPapers provides access to RePEc, the world's largest collection of on-line Economics working papers, journal articles and software.

EconStor is a publication server for scholarly economic literature, provided as a non-commercial public service by the ZBW.

NEP is an announcement service which filters information on new additions to RePEc into edited reports. The goal is to provide subscribers with up-to-date information about the research literature. Our success in achieving this goal has been substantial. Today, there are 76374 subscriptions from 29307 unique addresses distributed throughout the world. The reports are generated by subject-specific editors. They are available by email and RSS feeds.

CAS Common Chemistry is an open community resource for accessing chemical information.

Epistemonikos is a collaborative, multilingual database of health evidence. It is the largest source of systematic reviews relevant for health-decision making, and a large source of other types of scientific evidence.

Europe PMC provides comprehensive access to life sciences literature from trusted sources. It's available to anyone, anywhere for free. With Europe PMC you can search and read 44.9 million publications, preprints and other documents enriched with links to supporting data, reviews, protocols, and other relevant resources.

PLOS publishes a suite of influential Open Access journals across all areas of science and medicine. Rigorously reported, peer reviewed and immediately available without restrictions, promoting the widest readership and impact possible. PLOS journals: PLOS Biology, PLOS Climate, PLOS Complex Systems, PLOS Computational Biology, PLOS Digital Health, PLOS Genetics, PLOS Global Public Health, PLOS Medicine, PLOS Mental Health, PLOS Neglected Tropical Diseases, PLOS ONE, PLOS Pathogens, PLOS Sustainability and Transformation, PLOS Water.

PubChem is an open chemistry database at the National Institutes of Health (NIH). PubChem data sources.

PubMed Central® is a free full-text archive of biomedical and life sciences journal literature at the U.S. National Institutes of Health's National Library of Medicine.

zbMATH Open (formerly known as Zentralblatt MATH) is the world's most comprehensive and longest-running abstracting and reviewing service in pure and applied mathematics.

e-LIS is an international digital repository for Library and Information Science (LIS), including Communication.

ERIC is a comprehensive, easy-to-use, searchable, Internet-based bibliographic and full-text database of education research and information. It is sponsored by the Institute of Education Sciences within the U.S. Department of Education.

The Law Review Commons brings together a growing collection of law reviews and legal journals in an easily browsable and searchable format. It contains both current issues and archival content spanning over 100 years.

OpenEdition est un portail de ressources électroniques en sciences humaines et sociales.

SSRN, formerly known as Social Science Research Network, is an open access research platform used to share early-stage research, evolve ideas, measure results, and connect scholars around the world. SSRN is a searchable online library that enables authors to post their papers and abstracts easily and free of charge. SSRN provides a space for a variety of content types to be accessed beyond the traditional research article, including gray literature, book reviews, multimedia files, and datasets.