Open Educational Resources are teaching, learning, and research materials in any medium – digital or otherwise – that reside in the public domain or have been released under an open license that permits no-cost access, use, adaptation and redistribution by others with no or limited restrictions.
Making Ripples: A Guidebook to Challenge Status Quo in OER Creation by Rebus Community (Kaitlin Schilling, Apurva Ashok, Jördis Weilandt) is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.
There are three main sources for OER:
OER Publishers and Producers
Examples: OpenStax, Lumen, Saylor
Examples: OERCommons, Merlot II, OrangeGrove
Public Domain Materials
Examples: Project Gutenberg, Government Documents
Community College Consortium for Open Educational Resources
"Our mission is expanding access to education by promoting awareness and adoption of Open Educational Resources (OER). Over 200 colleges have joined the consortium and many more participate in our activities and use resources posted here.
Check out the monthly webcam discussions about OERs.