My 10/21/2015 Google search of the expression Openly Licensed Educational Resources produced more than 640 thousand results. Openly Licensed Educational Resources (usually referred to as OER) are defined as:
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. [Bold added for emphasis.] See https://en.wikipedia.org/wiki/William_and_Flora_Hewlett_Foundation.