The African Journal Archive (AJA) is a Sabinet Gateway project in conjunction with the Carnegie Corporation that is making African research accessible to the whole world. The archive includes searchable collections of journal articles that have been digitized back to the earliest issues, a valuable resource for academics and students.

American Mathematical Society AMS Open Math Notes is a repository of freely downloadable mathematical works in progress hosted by the American Mathematical Society as a service to researchers, teachers, and students.

Cambridge University Press Open publishes “Gold OA journals and books and works with publishing partners, such as learned societies to develop OA in different communities.”

The Directory of Open Access Books is a multi-subject directory that provides access to e-books on various subjects.

The Directory of Open Access Journals (DOAJ) is an online directory that indexes and provides access to high quality, open access, peer-reviewed journals.

All articles in open access journals published by Elsevier Science Open Access Journals

 have undergone peer review and upon acceptance are immediately and permanently free for everyone to read and download.

Emerald Open is a scholarly publisher of academic journals in the fields of management, business, and education.

Data sets; Google Public Data Explorer provides public data and forecasts from a range of international organizations and academic institutions including the World Bank, OECD, Eurostat, and the University of Denver. These can be displayed as line graphs, bar graphs, cross sectional plots, or on maps.

Open Data for Africa is one the largest repository of free public data, open data and government statistics on Nigeria’s numerous socioeconomic topics.

Open Access Theses and Dissertations is one of the best resources for finding open access graduate theses and dissertations published around the world.