Open Educational Resources [OER] "are teaching, learning, and research resources that reside in the public domain or have been released under an intellectual property license that permits their free use and re-purposing by others. Open educational resources include full courses, course materials, modules, textbooks, streaming videos, tests, software, and any other tools, materials, or techniques used to support access to knowledge." -The William and Flora Hewett Foundation
Several definitions of OER are available at the Creative Commons site and includes a comparison table of definitions.
"7 Things You Should Know About Open Educational Resources." EDUCAUSE Learning Initiative (ELI) (27 May 2010).
Benefits of Open Educational Resources (OER):
page 13 in Butcher, Neil. A Basic Guide to Open Educational Resources (OER). Vancouver: UNESCO, 2011.
Rubrics and criteria to use in evaluating Open Educational Resources (OER):