OpenDOAR (2005). The Directory of Open Access Repositories is a descriptive list of open access repositories relevant to academic research. Created by the University of Nottingham (UK), as part of the SHERPA project.


Re3data (2012). Global registry of research data repositories that covers research data repositories from different academic disciplines. It includes repositories that enable permanent storage of and access to data sets. The registry promotes a culture of sharing, increased access and better visibility of research data. It has been funded by the German Research Foundation (DFG).


Registry of Open Access Repositories - ROAR (2004). Directory of open access repositories, it also displays statistical information graphically. Developed by the University of Southampton (UK).