Repositories listed here are considered reputable sources by the OER community at large. Users have the opportunity to review and recommend the individual resources within each. Please use the same due diligence evaluating these as you would any other course materials. For help evaluating OER, see the "Evaluate OER" tab.
Also take note of rights given for each item. Some organizations define "open" differently, and some portals may house restricted resources alongside truly open ones. For more on this topic, see the "Copyright, Creative Commons, Fair Use, and OER Usage Rights" section under the "Resources" tab.
