Ole’s Open Text will support interested instructors in selecting timely, flexible, and engaging resources for students. Ole’s Open Text will promote and assist instructors in integrating appropriate library resources (including purchasing a specific ebook for your course) along with public domain, and open license materials into their courses.
"Open Educational Resources (OER) 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." from UNESCO
Additional definitions can be found at the Creative Commons wiki.
Important Features of Open Educational Resources: