Open Access Databases
arXiv
Core resource for publications in physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, economics and electrical engineering and systems science. For many of these fields the majority of the articles are made freely available as preprints.
BASE
BASE is one of the world's most voluminous search engines especially for academic web resources. BASE provides more than 200 million documents from more than 8,000 content providers. You can access the full texts of about 60% of the indexed documents for free (Open Access). BASE is operated by Bielefeld University Library.
bioRxiv
bioRxiv is a free online archive and distribution service for unpublished preprints in the life sciences. It is operated by Cold Spring Harbor Laboratory, a not-for-profit research and educational institution. By posting preprints on bioRxiv, authors are able to make their findings immediately available to the scientific community and receive feedback on draft manuscripts before they are submitted to journals.
Central and Eastern European Online Library
CEEOL is a leading provider of academic e-journals and e-books in the Humanities and Social Sciences from and about Central and Eastern Europe.
ChemRxiv
An open preprint server for chemistry, managed by ACS. A free submission, distribution and archive service for unpublished preprints in chemistry and related areas. It gives researchers across a broad range of chemistry fields the opportunity to share early results with colleagues and respond to comments and recommendations for improvement, ahead of formal peer review and publication.
ChemSpider
A free database of chemical structures and associated information. Includes structure identifiers such as SMILES, InChI, IUPAC and Index Names, as well as many physicochemical properties. To draw and search on a structure or substructure, click “Structure search,” then click the pencil inside the diagram, then select “Draw or Edit”.
CiteSeerx
CiteSeerx is an evolving scientific literature digital library and search engine that has focused primarily on the literature in computer and information science.
CORDIS
The Community Research and Development Information Service (CORDIS) is the European Commission's primary source of results from the projects funded by the EU's framework programmes for research and innovation (FP1 to Horizon 2020).
CORE
The world’s largest collection of open access research papers.
Crystallography Open Database
Open-access collection of crystal structures of organic, inorganic, metal-organic compounds and minerals, excluding biopolymers.
DataDOI
DataDOI is an institutional research data repository of University of Tartu managed by University of Tartu Library. DataDOI gathers all fields of research data and stands for encouraging open science and FAIR (Findable, Accessible, Interoperable, Reusable) principles. DataDOI is made for long-term preservation of research data. Each dataset is given a DOI (Digital Object Identifier) through DataCite Estonia Concortium.
DOAB: Directory of Open Access Books
DOAB is a joint service of OAPEN, OpenEdition, CNRS and Aix-Marseille Université, provided by DOAB Foundation.
DOAJ: Directory of Open Access Journals
DOAJ is a community-curated online directory that indexes and provides access to high quality, open access, peer-reviewed journals. DOAJ is independent.
DOE Office of Scientific and Technical Information
Covers science, technology, and engineering research information from the U.S. Department of Energy. SciTech Connect consolidates the contents of OSTI's Information Bridge and Energy Citations Database.
EconPapers
EconPapers provides access to RePEc (Research Papers in Economics), the world´s largest collection of on-line Economics working papers, journal articles, software.
ECS Electrochemistry Knowledge
Regularly updated index to the electrochemistry literature (books, proceedings, articles and websites) together with a dictionary and an encyclopedia.
Edgar
U.S. Securities and Exchange Commission database of companies, containing all mandatory filings, including annual reports of all listed American companies and US-listed non-American companies.
Eesti Pank
Publications of Eesti Pank (Bank of Estonia), Estonian monetary system, statistical indicators, research etc.
Statistics Estonia
The statistical database presents official statistics by subject matter domains as follows: environment, economy, population, social life, the Population and Housing Census, sustainable development and integration.
Eurobarometer
The Standard Eurobarometer was established in 1974. Each survey consists of approximately 1000 face-to-face interviews per country. Reports are published twice yearly.
Eurostat
EU statistics.
Harvard Business School Working Papers Collection
Working papers from Harvard Business School and other universities.
IMF eLibrary
Free resources from The International Monetary Fund IMF.
INTECH
World’s largest Science, Technology & Medicine Open Access book publisher. Includes wide coverage of Engineering disciplines.
iScienceSearch
The Internet search engine for chemists and biologists; a federated search service that retrieves chemical compound information from a wide variety of databases.
Laboratory Hazards Bulletin
Laboratory Hazards Bulletin online database provides key information on hazards encountered by laboratory workers in all fields including R&D, analytical and hospital laboratories, scanned from the primary scientific and trade literature worldwide.
NASA Technical Reports Server
The NTRS collects scientific and technical information from NASAs technical report servers and non-NASA sites. The types of information include: conference papers, journal articles, meeting papers, patents, research reports, images, movies, and technical videos – scientific and technical information (STI) created or funded by NASA. Many reports are available in full text.
PLOS
PLOS is a nonprofit open-access science, technology and medicine publisher with a library of open-access journals and other scientific literature under an open-content license.
Open Textbooks library
The Open Textbook Library is a comprehensive referatory that points to open textbooks by a variety of authors and publishers. The Open Textbook Library is supported by the Open Education Network.
OAIster
OAIster is a union catalog of millions of records that represent open access resources. OAIster includes more than 50 million records that represent digital resources from more than 2,000 contributors.
PubChem
An open chemistry database at the National Institutes of Health (NIH). Largest free database of substance information on small molecules (with fewer than 1000 atoms and 1000 bonds) but also larger molecules such as nucleotides, carbohydrates, lipids, peptides, and chemically-modified macromolecules. Collects information on chemical structures, identifiers, chemical and physical properties, biological activities, patents, health, safety, toxicity data, and many others. Search by name or structure.
PubMed
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 (NIH/NLM). PMC contains more than 5 million full-text records, spanning several centuries of biomedical and life science research (late 1700s to present). PubMed comprises citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
Riigi Teataja
Official database of Estonian legal acts. Database contains the translations of Estonian legal acts into English.
SCIRP
SCIRP is an academic publisher of open access journals. It also publishes academic books and conference proceedings. SCIRP currently has more than 200 open access journals in the areas of science, technology and medicine.
Springer Open
The SpringerOpen offers researchers from all areas of science, technology, medicine, the humanities and social sciences a place to publish open access in journals.
swMATH
swMATH is a freely accessible information service for mathematical software. swMATH provides access to an extensive database of information on mathematical software, and also includes systematic linking of software packages with relevant mathematical publications.
TRID
An integrated database that combines the records from TRB's Transportation Research Information Services (TRIS) Database and the OECD's Joint Transport Research Centre’s International Transport Research Documentation (ITRD) Database.
Wiley Open Access
Wiley Open Access publishes authoritative peer reviewed open access journals across many research disciplines, including across biological, chemical and health sciences.
World Bank Open Data
World Bank Open Data Portal provides access to global economic and development data and series.