The AMNH DSpace Digital Repository is a digital archive maintained by the Research Library for AMNH Scientific Publications and materials digitized by the Library.

The Scientific Electronic Library Online - SciELO is an electronic library covering a selected collection of Brazilian scientific journals and provides full access to the fulltext articles of serial titles.

Sabinet is a Full Open Access Journal Collection that comprises 46 South African journals and provides immediate access to the PDF versions of 6 000+ full-text articles. Of the journals in the collection, 15 appear on the Approved South African Journals list, the ISI list, or the IBSS list. New journal titles and issues are added to the collection on an ongoing basis.

Hindawi publishes more than 300 Open Access journals covering a wide range of academic disciplines. All articles published in Hindawi journals are open access and distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Project Euclid's mission is to advance scholarly communication in the field of theoretical and applied mathematics and statistics. The complete holdings of open access publications are currently accessible to any Project Euclid user without a subscription or site license.

"Japan Science and Technology Information Aggregator, Electronic" (J-STAGE) is an electronic journal site operated by Japan Science and Technology Agency ("JST ") and it makes electronic journals issued by Japanese academic institutions and other contents available to the public via the Internet.

The PMC Open Access Subset includes articles from a number of publishers' programs, each of which deposits selected articles from a range of journals. A complete list of the publisher programs, with links to the articles, can be found on the Special Collections tab of the PMC Journal List.

HighWire Press is the largest archive of free full-text science on Earth! There are 49 completely free sites and 282 sites have free back issues.

DigiZeitschriften is a research service. It contains 99 open access journals that are published in Germany and they are Complete or partial available online.

BENTHAM OPEN publish over 230 peer-reviewed open access journals. These free-to-view online journals cover all major disciplines of science, technology, medicine and social sciences.

The Electronic Library of Mathematics contains online journals, article collections, monographs, and other electronic resources in the field of mathematics. All material is in electronic form and access is generally free, except for some periodicals with a "moving wall", i.e., a certain delay period after which resources become freely available.