OASIS
Openly Available Sources Integrated Search (OASIS) is a search tool that aims to make the discovery of open content easier. OASIS currently searches open content from 61 different sources and contains 160,072 records.
Pressbooks Directory
Pressbooks Directory
The Pressbooks Directory works by collating public books created on PressbooksEDU networks and allowing users to search the metadata written by the authors of the books.
CC Search (Creative Commons)
Search for free content in the public domain and under Creative Commons licenses. CC Search searches images across 19 collections pulled from open APIs and the Common Crawl dataset, including cultural works from museums (the Metropolitan Museum of Art, Cleveland Museum of Art), graphic designs and art works (Behance, DeviantArt), photos from Flickr, and an initial set of CC0 3D designs from Thingiverse.
OER Metafinder
The OER Metafinder is a real-time, simultaneous search across all the content of 17 different sources of open educational materials.
