AnthroBase (Anthropology)
Multilingual, searchable database of articles, theses, essays, reports, conference papers, field-notes, etc., written by anthropologists and others with an interest in social and cultural diversity.

Guide to Law Online (Law)
An annotated guide to sources of information on government and law by region, country or U.S. state prepared by the Law Library of Congress. 

Ravel Law (Law)
Harvard Law School with the support of Ravel Law is digitizing its entire collection of U.S. case law, one of the largest collections of legal materials in the world. The "Free the Law" initiative initiative will provide open access to American case law for the first time in U.S. history. 

E-LIS (Library & Information Science) 
E-LIS is an open access archive to deposit preprints, postprints and other documents in the field of library and information science in electronic format.

PhilArchive (Philosophy) 
Formerly known as the PhilPapers Archive, PhilArchive consists entirely of articles submitted by users.