Directory of Open Access Journals
http://doaj.org/

Directory of Open Access Books
http://www.doabooks.org/

Directory of Open Access Repositories (OpenDOAR)
http://www.opendoar.org/search.phphttp://www.opendoar.org/

Highwire Press
http://highwire.stanford.edu/lists/freeart.dtl

World Wide Science (Science gateway)
http://worldwidescience.org/

British Medical Journal (BMJ)
http://journals.bmj.com/

Biomed central
www.biomedcentral.com/

Free Medical Journals
www.freemedicaljournals.com/

Public Library of Science
www.plos.org

Alberta Law Review
http://www.albertalawreview.com/index.php/alr

Amsterdam Law reform
http://www.amsterdamlawforum.org/

Goettingen Journal of International Law
http://www.gojil.eu/

Journal of Law and Commerce
http://jlc.law.pitt.edu/ojs/index.php/jlc

Journal of Algebra and its Applications- Requires registration
http://www.worldscientific.com/worldscinet/jaa

Annales Geophysicae
http://annales-geophysicae.net/

Earth Planets and Space
http://www.terrapub.co.jp/journals/EPS/

Current articles of EPS are also available on Springer Open at
http://www.earth-planets-space.com/

Springer Open Journals
http://www.springeropen.com/

Bioline
http://www.bioline.org.br/

Makerere IR
http://makir.mak.ac.ug/

Virginia Tech Univ
http://scholar.lib.vt.edu/theses/findetd.html

British Theses and Dissertations
https://ethos.bl.uk – Need to register

Mathematics and Physics Repository
http://arxiv.org/

Mathematics and Physics Repository
http://library.ifla.org

Social Sciences Research Network (SSRN)
http://www.ssrn.com/en/

MIT Open Courseware
http://ocw.mit.edu/index.htm

African Virtual University (AVU-OER)
http://oer.avu.org/

Africa OER
http://www.oerafrica.org

Google Open Courseware
http://opencontent.org/googleocw/

John Hopkins School of Public Health OCW
http://ocw.jhsph.edu/