OERSI (Open Educational Resources Search Index) is a comprehensive search engine for free educational materials in university teaching and education. As a central search entry point, OERSI connects repositories of federal state initiatives dedicated to sharing open educational materials, institutional repositories of universities and libraries and specialist repositories for OER.
The "TIB AV-Portal", which is operated by the German National Library of Science and Technology – Leibniz Information Centre for Science and Technology and University Library in Hanover, offers space for the publication of audiovisual media from science – including OER, which can be shared using open content licenses.
The University of Freiburg's video portal ("Videoportal") is available to university members for academic purposes in teaching, study, research and professional development.
ZOERR ("Zentrales Repositorium für Open Educational Resources", central repository for open educational resources) is the central platform for open educational materials of the federal state of Baden-Württemberg.
