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."
"Open access" is the practice of providing unrestricted access to online, peer-reviewed, scholarly materials, including journal articles, books and monographs. Here is a brief introduction from one of the leaders in the field, Peter Suber:
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