In an era of mounting student debt in many countries, this is unsustainable. But what are we in higher education doing to change this reality? Open educational resources (OER) is a term that was introduced in 2000 at a Unesco conference to refer to course materials that are hosted online and available to all. We have seen a range of actors, including the government of British Columbia, the Massachusetts Institute of Technology and even Amazon make significant investments in this area.
https://www.timeshighereducation.com/opinion/its-time-get-serious-about-open-educational-resources