Open Access Links

AGRICOLA is a bibliographic database of citations to the agricultural literature created by the National Agricultural Library and its co-operators. The OPAC describes the books, serials, audiovisuals, and other resources held by NAL and its Co-operators.

Click here to access:  AGRICOLA

2) BadgerLink

BadgerLink provides access to information resources for Wisconsin residents in cooperation with the state's public, school, academic, and special libraries. It includes access to over 6,000 magazines, newsletters and newspapers. Many of the titles are full text.

Click here to access:   BadgerLink

3) BioMed Central

BioMed Central provides a collection of free, open access, mostly peer reviewed research articles from over 100 biomedical, medicine, health, biology and biotechnology related online journals. (Note: For a few journals, only the research content is free.)

Click here to access:   BioMed Central

4) Catalog of U.S. Government Publications

The Catalog of U.S. Government Publications (CGP) indexes electronic and print publications from the legislative, executive, and judicial branches of the U.S. government. Direct links are provided to those publications that are available online.

Click here to access:   Catalog of U.S. Government Publications

5) Chemistry Central

Chemistry Central provides peer-reviewed open access research articles in chemistry published by, or in cooperation with, BioMed Central.

Click here to access:   Chemistry Central

6) Clinical Trials provides patients, family members, health care professionals, and members of the public easy access to regularly updated information on thousands of federally and privately supported clinical trials for a wide range of diseases and conditions. The U.S. National Institutes of Health (NIH), through its National Library of Medicine (NLM), has developed this site in collaboration with all NIH Institutes and the Food and Drug Administration (FDA).

Click here to access:   ClinicalTrials

7) Cold Regions Bibliography

Cold Regions Bibliography contains over 220,000 bibliographic records on Antarctica, cold regions science and technology.

Click here to access:   Cold Regions Bibliography

8) Collection of Computer Science Bibliographies

The Collection of Computer Science Bibliographies provides access to 1,400 bibliographies of literature in computer science. The collection contains more than 1.4 million references to journal articles, conference papers, and technical reports; many records include abstracts and links to full-text documents; updated monthly.

Click here to access:   Collection of Computer Science Bibliographies

9) Directory of Open Access Journals (DOAJ)

The Directory of Open Access Journals aims to be comprehensive and cover all open access scientific and scholarly journals that use a quality control system to guarantee the content. In short a one stop shop for users to Open Access Journals.

Click here to access:   Directory of Open Access Journals (DOAJ)

10) Digital Public Library of America (DPLA)

The Digital Public Library of America brings together the riches of America’s libraries, archives, and museums, and makes them freely available to the world. It strives to contain the full breadth of human expression, from the written word, to works of art and culture, to records of America’s heritage, to the efforts and data of science.

Click here to access:   Digital Public Library of America (DPLA)

11) ERIC - Education Resources Information Center

ERIC is the source for information on all aspects of education for all age groups, including counseling, tests, and measurement. ERIC indexes journal articles, books, theses, curriculi, conference papers, standards and guidelines.

Click here to access:   ERIC - Education Resources Information Center

12) Google Scholar

Google Scholar searches academic publishers, professional societies and pre-print archives.

Click here to access:   Google Scholar

13) HighWire Press

Highwire Press provides indexing and selected full text to journals in the life sciences, medicine, physical and social sciences. Full-text of selected journal articles is available to signed in UWM users. Individual users can order articles for a fee.

Click here to access:   HighWire Press

14) Index Translationum

UNESCO (United Nations Edcuational , Scientific and Cultural Organization)publishes a free, web-accessible database of literature in translation. Use this resource to identify translated works, then search the LIBRARY CATALOG for availability. The database can be searched by original language, target language, translator, keyword and other options. The print predecessor is available in the UWM Libraries with the call number: Z6514 .TZ I42.

Click here to access:   Index Translationum

15) IngentaConnect

IngentaConnect is a free abstracting service covering over 29,000 scholarly journals in many academic fields including engineering, library science, medicine, science, and technology. Full-text of selected journal articles is available to signed in UWM users. Individual users can order articles for a fee.

Click here to access:   IngentaConnect

16) PubMed (Medline)

PubMed is the National Library of Medicine's search service that provides access to over 14 million citations in MEDLINE, and other related databases, with links to participating online journals.

Click here to access:   PubMed (Medline)

17) MedlinePlus

MedlinePlus originated in 1998; National Library of Medicine's selective list of authoritative health information sources from the National Institutes of Health and other government and professional organizations in the U.S. Updated nightly, it has over 4,000 articles on various diseases, symptoms, drugs and procedures, as well as interactive health tutorials, research news, local resources, directories of hospitals and physicians, clinical trials and links to Medline for journal citations.

Click here to access:   MedlinePlus

18) National Criminal Justice Reference Service

National Criminal Justice Reference Service has citations and abstracts to federal, state, and local government documents, books, research reports, journal articles, and unpublished research in the field of criminal justice. Some publications are available in full text.

Click here to access:   National Criminal Justice Reference Service

19) Sourcebook of Criminal Justice Statistics Online

The Sourcebook of Criminal Justice Statistics presents data from more than 100 sources about all aspects of criminal justice in the United States. These data are displayed in over 1000 tables.

Click here to access:   Sourcebook of Criminal Justice Statistics Online

20) TRID: the TRIS and ITRD database

TRID is 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. TRID provides access to more than one million records of transportation research worldwide.

Click here to access:   TRID: the TRIS and ITRD database

21) UWM Digital Commons

A digital document repository including e-books, papers, reports, dissertations, journal articles, conference proceedings and other documents by UWM authors. The UWM Digital Commons is a repository for UWM faculty, staff and student publications.

Click here to access:   UWM Digital Commons

22) Wikipedia

Wikipedia is a community-built encyclopedia with over 3,000,000 articles. Note that because articles can be "vandalized," information on Wikipedia is not always accurate. As with other encyclopedias, however, it is sometimes a good starting point in the research process.

Click here to access:   Wikipedia

23) World Factbook

The World Factbook lists country profiles for each nation, including history, people, government, economy, military, industry, flags, and maps.

Click here to access:   World Factbook

24) Open Professionals Education Network

links to open textbooks, photos, video, audio, and more.

Click here to access:   Open Professionals Education Network

25) Open Textbook Library

A growing catalog of free, peer-reviewed, and openly-licensed textbooks.

Click here to access:   Open Textbook Library


Tens of thousands of discipline-specific learning materials, learning exercises, and Content Builder web pages, together with associated comments, and bookmark collections, all intended to enhance the teaching experience of using a learning material.

Click here to access:   MERLOT II

27) Open Stax College

open textbooks for high enrollment college courses using the Connexions platform.

Click here to access:   Open Stax College

28) Open Educational Resources (OER) Commons

open teaching and learning materials including full university courses, interactive mini-lessons, simulations, and electronic textbooks.

Click here to access:   Open Educational Resources (OER) Commons

29) Open Course Library

Textbooks, syllabi, assessments, in 81 high-enrollment college courses created by a Washington State Board for Community & Technical Colleges (SBCTC) grant.

Click here to access:   Open Course Library

30) Teaching Commons

Curated by librarians and their institutions, the Teaching Commons includes high-quality open educational resources such as textbooks, course materials, lesson plans, multimedia, and more. Discover content by type of work or subject.

Click here to access:   Teaching Commons

31) Open Book Publishers

Award-winning enterprise run by scholars who are committed to making high-quality research available to readers around the world. Includes a growing collection of monographs and textbooks in all areas.

Click here to access:   Open Book Publishers

32) College Open Text Books Collaborative

A collection of twenty-nine education organizations focused on driving awareness and adoptions of open textbooks to more than 2000 community and other two-year colleges. This includes providing training for instructors adopting open resources, peer reviews of open textbooks, and mentoring online professional networks that support for authors opening their resources, and other services.

Click here to access:   College Open Text Books Collaborative

34) OSF Preprints

A single search of over 2 million aggregated preprints from the many disciplinary repositories built on the Open Science Framework platform Click here to access:   OSF Preprints

35) SocArXiv

Open archive of the social sciences Click here to access:   SocArXiv

36) arXiv

arXiv is a repository of electronic preprints, or e-prints, in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, and statistics. Click here to access:   arXiv

37) Humanities Commons

A nonprofit network where humanities scholars can create a professional profile, discuss common interests, develop new publications, and share their work Click here to access:   Humanities Commons

38) BASE (Bielefield Academic Search Engine)

BASE is a freely available search engine for academic open access resources on the web. Click here to access:   BASE (Bielefield Academic Search Engine)


The OAPEN Library contains freely accessible academic books, mainly in the area of Humanities and Social Sciences. Click here to access:   OAPEN

40) HathiTrust

HathiTrust is a partnership of academic and research institutions, offering a collection of millions of titles digitized from libraries around the world Click here to access:   HathiTrust

Quick Links

An institution deemed to be a University estd. vide Sec.3 of the UGC Act,1956 under notification # F.12-23/63.U-2 of Jun 18,1964

© 2015 BITS-Library, BITS-Pilani, India. [Credits]