Open Educational Resources (OERs) are any type of educational materials that are in the public domain. They are published under open licenses (i.e Creative Commons) that specify how materials can be used, reused, adapted, shared and modified according to specific needs. They can include textbooks, lecture notes, syllabi, assignments and tests.
Follow this link to find more detailed information on using and creating OERs and take a look at the useful links on the left for some other places to look.
