The eduOER service of GÉANT is an Open Educational Resource (OER) metadata aggregation hub and portal service with the aim at facilitating access to digital multimedia content at the European level in the form of repositories, infrastructures and services. 

Content repositories at any size or maturity are invited to offer metadata to the eduOER hub and openly exchange information about their materials for the benefit of open education and research. eduOER sets the barrier of entry low and supports the development of repositories in order to reach the critical mass.

Link: https://eduoer.up2university.eu