OERSI – a search engine for OER in higher education

OERSI stands for Open Educational Resources Search Index - a search engine for free educational materials in higher education. As a central search entry point, OERSI connects OER repositories of distributed state initiatives, institutional repositories of universities and libraries, and subject-specialized repositories for OER.
OERSI is an open source-based service jointly initiated by the Hochschulbibliothekszentrum des Landes Nordrhein-Westfalen (hbz) and the Leibniz Information Centre for Science and Technology Hanover (TIB).
No content is stored in OERSI itself, only the metadata is merged and homogenized for uniform searching. The OERSI data structure is developed cooperatively within the Allgemeines Metadatenprofil für Bildungsressourcen (AMB). Compared to repositories, it is not possible to upload materials in OERSI itself. Materials are made available through the connected sources. The ZOERR is one of these sources.