The Open Access Scholarly Publishing Association (OASPA) is a membership organisation that was established in 2008 in order to represent the interests of Open Access (OA) globally in all scientific, technical and scholarly disciplines.
An archive and distribution server in areas, such as: physics, mathematics, computer science, nonlinear sciences, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics. arXiv is a repository of electronic preprints approved for posting after moderation, but not full peer review.
OpenDOAR is the quality-assured, global Directory of Open Access Repositories. You can search and browse through thousands of registered repositories based on a range of features, such as location, software or type of material held.
The OSF Preprints site is a meta-archive of preprints servers supported by the OSF architecture, which includes the SocArxiv as already listed on that guide along with 40 other similar repositories covering all areas of knowledge.
SocArXiv, open archive of the social sciences, provides a free, non-profit, open access platform for social scientists to upload working papers, preprints, and published papers, with the option to link data and code. SocArXiv is dedicated to opening up social science, to reach more people more effectively, to improve research, and build the future of scholarly communication.