Open Educational Resources (OER) are learning materials freely available in the public domain.The Open Educational Resources movement is part of a global effort to make knowledge available to all.

According to Wikipedia OER is a term that was first adopted at UNESCO’s 2002 Forum on the Impact of Open Courseware for Higher Education in Developing Countries funded by the Hewlett Foundation. The definition is:digitized materials offered freely and openly for educators, students and self-learners to use and re-use for teaching, learning and research.

In other words, 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 or 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 OpenCourseWare movement began at the Massachusetts Institute of Technology (MIT) in 2002 and has now spread to some 120 other universities worldwide.

Below given a number of OER websites for reader’s reference.