Link to introduction of open course about OER from Rice University.
Use George Mason University's OER Metafinder Search Tool
Mason OER Metafinder searches fifteen of the leading OER repositories with a single query. Users can perform broad queries across all sources or they can search for terms in full record, title, or author(s). They can also specify a date range and narrow their searches to a specific date range.
Portals and Hubs for Finding OER
OER Commons "OER Commons is a dynamic digital content hub, offering a suite of OER implementation supports."
MERLOT is a curated collection of free and open online teaching, learning, and faculty development services contributed and used by an international education community. It is a product of the California State University System partnering with education institutions, professional societies, and industry.
iLumina A digital library of sharable undergraduate teaching materials for chemistry, biology, physics, mathematics, and computer science. Created by the National Science Digital Library, iLumina is designed to quickly and accurately connect users with the educational resources they need. These resources range in type from highly granular objects such as individual images and video clips to entire courses.
Multiple institutional sponsors, hosted by University of Minnesota - Twin Cities. "This library is a tool to help instructors find affordable, quality textbook solutions. All textbooks in this library are complete and openly licensed." Your University Libraries are a member of the Open Textbook Network (OTN), which supports the Open Textbook Library, through MOBIUS.