OpenDOAR is an authoritative directory of academic open access repositories. Each OpenDOAR repository has been visited by project staff to check the information that is recorded here. This in-depth approach does not rely on automated analysis and gives a quality-controlled list of repositories.
Repository66.org uses data from ROAR and OpenDOAR to map the repositories. The map uses icons to indicate the repository’s size and software platform. Clicking an icon will provide a link to the repository, information about the repository.