AIP Open Access

Physics, chemistry, technology science full-text articles and conference presentations.

American Economic Association Journals

Economic full-text articles.

Applied Technologies and Innovations  

ATI covers the continuum of subjects related to applied sciences.

ARAN (National University of Ireland Galway)

The repository includes peer-reviewed articles, working papers, and conference papers produced at the National University of Ireland. 

arXiv.org

Physics, mathematics, computer science, biology and statistics topics full-text publications.

Bepress Legal Repository

Open access database of legal topics, which includes various legal institutions and universities publications, working papers, conference reports.

Bergen Open Research Archive (University of Bergen) 

Subject areas cover a range of academic interests, including humanities, mathematics and natural sciences, social sciences, psychology and medicine and dentistry. 

Bioline International

A not-for-profit scholarly publishing cooperative.

BioMed Central (The Open Access Publisher)

The publisher of open access journal offers magazines of biomedicine and medicine areas.

Bookboom.com

Ebooks in different fields of science - economics, engineering, mathematics, information technology and life sciences.

British Journal of Applied Science & Technology

Open Access journal in technology and applied science areas.

Central and Eastern European Online Library (C.E.E.O.L.)

Central and Eastern European countries publications archive. Articles are published in the original languages. Open access is given to many articles in the Lithuanian language.

CERES

Subjects covered include Engineering, Library Science, Management, Health, the Applied Sciences, and more.

ChemSpider

Free chemical structure database providing fast text and structure search access to over 67 million structures from hundreds of data sources.

CiteSeerX

Open access literature in computer and information science.

Civil Engineering  Database

ASCE Library is an online full-text civil engineering database providing the contents of peer-reviewed journals, proceedings, e-books, and standards published by the American Society of Civil Engineers.

Coaction Publishing

Co-Action Publishing is an international Open Access scholarly publisher with a portfolio of peer-reviewed journals and books spanning a range of academic disciplines.

Copernicus Publications

Copernicus is a high-quality Publisher of Germany which publishes open access journals and conference documents in constructional engineering, mechanics, earth and humanitarian sciences.

De Gruyter books

Ebooks on social, humanities and exact sciences.

De Gruyter journals

Mathematics, medicine, economics, natural science, social science and humanities journals.

Digital Commons Network

The Digital Commons Network brings together free, full-text scholarly articles from hundreds of universities and colleges worldwide.

DigitalCommons@SPU 

The institutional repository of the research and scholarly output at Seattle Pacific University, as well as other institutional publications. 

DiVA portal
 
Materials include theses, dissertations, and other academic publications.

DOAB: Directory of Open Access Books

Open access books of architecture, economics and management, chemistry and so on.

DOE Pages

US Department of Energy's platform provides access to scientific publications and research.

DOAJ the Directory of Open Access Journals

Open Access journals, created at Lund University. This service covers free, full text, quality controlled scientific and scholarly journals in all subjects and languages.
 

Economics

Economics is a pathbreaking journal that adopts an open source approach to publication, viewing research as a cooperative enterprise between authors, editors, referees, and readers.

E-LIS

Open access documents in the library and information science.

EU Bookshop website 

The EU Bookshop website provides a single access point to publications from the European Union institutions, agencies and other bodies, published since 1952. 

eWiC Series

The eWiC Series gives free access to the proceedings of workshops and conferences on the broadest possible range of computing topics. 

Finance&Development

Four times a year journal, which is published by International Monetary Fund.

Fraunhofer ePrints 

Fraunhofer ePrints includes the full-text publications of the scientists of the Fraunhofer Society. 

Gutenberg 

Fields covered include agriculture, education, fine arts, geography, health, history, language & literature, law, music, psychology & philosophy, religion, science, and technology, as well as children’s books.

HighWire Press

The publishing platform and repository of Stanford University and other e-publishers for physical, social, humanities, and medical science publications . Most open access publications have between 4 and 24 months. the embargo period.

Hindawi

Open access journals covering a wide range of academic disciplines.

INASP Directory of Free and Open Access Online Resources

References to full-text journals and databases.

InderScience

This collection covers international, peer-reviewed journals in the fields of law; engineering and technology; management and business administration; energy; environment and sustainable development. 

INFORMS
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Informs journals are scholarly, peer-reviewed publications on operations research and management sciences. 

Infoscience

Database used to archive and make accessible works and scientific publications (articles, conference papers, proceedings, books, book chapters, posters, reports, etc.)

InTech              
More than 2300 open access books and 7 open access journals of technology, economic and management, medical sciences.

Korea Science  

KoreaScience provides information on research achievements in the fields of natural sciences, life sciences, engineering and humanities and social sciences.

Loughborough's IR 

Full-text items and includes journal papers, book chapters, conference papers, theses and audiovisual material.

Maney online 

Subjects include materials science and engineering, the humanities and social sciences, and health science. 

Math-Net.Ru

The portal, which presents the developments of mathematics in Russia. The text of math journal is available after 3 years of the journal’s publishing.

NARCIS (National Academic Research and Collaborations Information System)

Open access to scientific publications from the repositories of all the Dutch universities, KNAW, NWO and a number of research institutes, datasets from some data archives as well as descriptions of research projects, researchers and research institutes.

NASA Technical Reports Server 

NASA Technical Reports Server (NTRS) provides access to aerospace-related citations, full-text online documents, images, and videos – scientific and technical information created or funded by NASA. 

OpenDOAR (Directory of Open Access Repositories)

An authoritative directory of academic open access repositories.

Open Knowledge Repository

The World Bank Open Knowledge Repository (OKR) is The World Bank’s official open access repository for its research outputs and knowledge products,

Open Science

Peer-reviewed open access e-journals and e-books cover a wide range of academic disciplines: life sciences, chemistry, physics, medicine, environment, materials science, computers and electronics, technology, economics, and business, also social sciences and humanities.

PhysNet

Open access journal of physics and similar sciences.

Project Gutenberg

More than 59,000 e-books of various scientific disciplines available for free.

Public Library of Science (PLoS)

Biological and medical sciences full-text publications.

Qscience

Disciplines from biomedicine, energy, environment, computing, the arts, social sciences, humanities, and Islamic studies. 

RMIT Research Repository 

Subject matter focuses on science, engineering, health, design, and business.

Science Publishing Group (Science PG)

Open access journal and books of energy and environment, physics, chemistry, materials, mathematics and statistics, medicine, economics and management and other sciences.

ScienceResearch.com

Scientific information search system that allows search in numerous scientific journals and databases.

Scientific Research

Open access journal and books of engineering, business, economics, chemistry, materials science, computer science, communications, environmental protection, social sciences, and humanities.

SciTech Connect 

Science research citations on topics ranging from Chemistry to Physics. 

SCOAP3

The field of high-energy physics to open access at no cost for authors. 

The Electronic Library of Mathematics

Open access journal of mathematics, algebra, geometry.

The Industrial Efficiency Technology Database

The Industrial Efficiency Technology Database is among the Institute for Industrial Productivity's package of databases on technology, policy, financing, and supply chain initiatives that are publicly available and offered free of charge, as part of our mandate to increase industrial energy productivity in energy-intensive sectors.

The National Academies Press

The reports of the National Academies of Sciences, Engineering, and Medicine, focusing on issues of science and health policy. 

The Public Library of Science

It offers journals the following journals in the fields of biology and medicine: biology, computational biology,  genetics, medicine, pathogens,  neglected tropical diseases. 

Theses Canada Portal

Canadian scientists’ electronic theses and dissertations in English and French.

World Scientific

The world scientific open access journals collection includes selected articles, covering such fields as biomedical science, physics, medical science, and life sciences.