Open  educational  resources (OER)  have been  defined  by the Hewlett  Foundation  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.
 Babson Survey Research Group
Higher Education Reports