About Creative Commons Licenses
Accessible Educational Materials
The Rebus Guide to Publishing Open Textbooks (So Far)
“This Living Library is a principal hub of the LibreTexts project, which is a multi-institutional collaborative venture to develop the next generation of open-access texts to improve postsecondary education at all levels of higher learning.”
“Some of what we do at Lumen Learning is available for free to the public. The words and pictures within our courseware are open educational resources (OER) and can be freely accessed through our Course Catalog at https://lumenlearning.com/courses/.”
“The Mason OER Metafinder helps you find Open Educational Resources. Unlike other OER discovery sites (e.g, OER Commons, OASIS, MERLOT, OpenStax, etc.) with our Metafinder you aren’t searching a static database that we’ve built. Instead, the OER Metafinder launches a real-time, simultaneous search across 22 different sources of open educational materials as you hit the Search button.”
“The MERLOT collection consists of tens of thousands of discipline-specific learning materials, learning exercises, and Content Builder webpages, together with associated comments, and bookmark collections, all intended to enhance the teaching experience of using a learning material.”
“OER Commons is a public digital library of open educational resources.”
“Open textbooks are licensed by authors and publishers to be freely used and adapted. Download, edit and distribute them at no cost.”
“We publish high-quality, peer-reviewed, openly licensed college textbooks that are absolutely free online and low cost in print.”
“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 132 different sources and contains 447,775 records.”
“Openverse is a tool that allows openly licensed and public domain works to be discovered and used by everyone. Openverse searches across more than 800 million images and audio tracks from open APIs and the Common Crawl dataset. We aggregate works from multiple public repositories, and facilitate reuse through features like one-click attribution.”
“A collection of freely usable media files to which anyone can contribute.”
July 2025