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Open Access Databases
Brill Open Access
It is one of the largest open access publishers in Humanities and Social Sciences.
BioMed Central
Providing access to journals covering all areas of biology and medicine.
BusinessBalls
BusinessBalls is the free and ethical home of all things leadership, management, and personal effectiveness. The resources are developed by experts and designed to make you more effective as a person. It contains over 10,000 quiz questions, and interactive quizzes.
cK-12
It provides access to open source content and technology tools that will empower students and teachers to enhance and experiementwith different learning styles, resources, levels of competence and circumstances.
dblp Computer Science Bibliography
It is an online index of major computer science publications. Although it provides access to both free access articles and those behind a paywall, you can limit your search to only full-text articles. The site indexes more than three million publications, making it an invaluable resource in the world of computer science.
Digital Library of the Commons Repository
It is a multidisciplinary journal repository that allows users to check thousands of free and open access articles from around the world. You can browse by document type, date, author, title, and more or search for keywords relevant to your topic.
Directory of Open Access Books (DOAB)
An open access dicrectory of books that meet academic standards.
Directory of Open Access Journals
Provides access to quality controlled scientific Open Access Journals covering several subject areas.
EconBiz
It 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 open access material only.
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ERIC(Education Resources Information Center)
It 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.
EThOS
It is run by the British Library. It allows you to search over 400,000 doctoral theses in a variety of disciplines. 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.
Free Management Library
It is one of the world's most complete, well-organized libraries of 1,000's of highly practical resources for personal, professional, business and organizational development. The broad categories below include sections, each of which has numerous topics. Also, each topic includes links to descriptions and various online articles related to that topic.
Free medical journals
Promotes access to medical journals over the internet.
Frontiers
A leading open access journals publisher and open science platform.
Full text Journals in Chemistry
Covers access to journals in chemistry, biochemistry and its related subjects.
HighWire Press
Major source of free access to high impact, peer reviewed life sciences journals on the internet sponsored by Stanford University Libraries.
Internet Archive Scholar
A full text search index includes over 25 million research articles and other scholarly documents preserved in the Internet Archive. The collection spans from digitized copies of eighteenth century journals through the latest Open Access conference proceedings and pre-prints crawled from the World Wide Web.
JURN
It is a multidisciplinary search engine that provides you with links to various scholarly websites, articles, and journals that are all free access or open access. Specifically 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.
NeoK12
Best collection of educational videos, games, quizzes, diagrams and puzzles.
Omics International
Research that aid to the progress in Clinical, Medical, Pharmaceutical, Chemistry, and Management disciplines.
Open Access Theses and Dissertations (OATD)
An open access graduate theses and dissertations published around the world.
Open and Free Content on JSTOR and Artsor
JSTOR is a highly selective digital library of academic content in many formats and disciplines. The collections include top peer-reviewed scholarly journals as well as respected literary journals, academic monographs, research reports from trusted institutes, and primary sources.
Open Culture
It brings together high-quality cultural and educational media for lifelong learning community.
Open Knowledge Maps
Its goal is to revolutionize discovery of scientific knowledge. Open Knowledge Maps are building a visual interface that dramatically increases the visibility of research findings for science and society alike. It is a charitable non-profit organization and believe that a better way to explore and discover scientific knowledge will benefit us all.
Project Muse (Open Access Content on MUSE)
Project MUSE hosts over 2000 open access books and a small number of fully open access journals, all from distinguished not-for-profit scholarly publishers. These books and journals are permanently, freely available to libraries and users around the world. Please filter the search to “Only content I have Access to” or sources that can be access have a logo “Free”.
PQDT OPEN
Provides full text of open access of dissertations and theses.
Public Library of Science
It is a big player in the world of open access science. Publishing seven open access journals, the non-profit organization is committed to facilitating openness in academic research.
PubMed
Offers unrestricted access to the U.S. National Library of Medicine's digital archive of life sciences journal literature.
ScienceOpen
It is a research and publishing network, it offers open access to more than 28 million articles in all areas of science. You need to register to view the full text of the articles, registration is free.
Scientific Journals International
Publishes peer-reviewed open-access journals for all disciplines.
Social Science Research Network (SSRN)
It is a collection of papers from the social sciences community. It also 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 is not often that you encounter a paywall. You have to register and be a member to use the services, but registration is free and it enables you to interact with other scholars around the world.
The Digital Commons Network
The Digital Commons Network brings together free, full-text scholarly articles from hundreds of universities and colleges worldwide. Curated by university librarians and their supporting institutions, the Network includes a growing collection of peer-reviewed journal articles, book chapters, dissertations, working papers, conference proceedings, and other original scholarly work.
The World Bank Open Knowledge Repository
FThe World Bank is the largest single source of development knowledge. The World Bank Open Knowledge Repository (OKR) is The World Bank’s official open access repository for its research outputs and knowledge products.
World Data Bank
Free and open access to data about development in countries around the globe.