OpenDOAR is the global directory of open access repositories of academic materials.  Over 2,700 repositories are currently registered in the quality-assured listing.  OpenDOAR staff harvest and assign metadata to allow categorisation and analysis to assist the wider use and exploitation of repositories. Each of the repositories has been visited by OpenDOAR staff to ensure a high degree of quality and consistency in the information provided.

Follow OpenDOAR on Twitter: @OpenDOAR