hprints is an Open Access repository aiming at making scholarly documents from the Arts and Humanities and Social Sciences openly available to the widest possible academic audience. It is the first of its kind in the Nordic Countries for the Humanities and Social Sciences.
Copernicus is both a repository and a completely open access geoscience publisher hosting several dozen titles. In fact, it is one of the oldest open access publishers, operating as such since 2001.
The Inter-University Consortium for Political and Social Research (ICPSR) serves as an archival repository of datasets as well as a resource for training researchers in quantitative methods. Begun in 1962, ICPSR is the largest social science data archive in the world. Content consists of approximately 62,000 datasets and over 7,000 studies with half a million files. Subject areas covered range from social science topics such as economics and politics to sociological issues such as unemployment and drug abuse and include individual data files as well as links to fulltext content where available. This resource is a very good source of government data. The database offers assistance with exporting, citing sources and receiving data from researchers who wish to share their findings.