We have looked here before at how OCW has shaped education in the last ten years, but in many ways much of the content that has been posted online remains very much “Web 1.0.” That is, while universities have posted their syllabi, handouts, and quizzes online, there has not been — until recently — much “Web 2.0″ OCW resources — little opportunity for interaction and engagement with the material.

But as open educational resources and OCW increase in popularity and usage, there are a number of new resources out there that do offer just that. You probably already know about: Khan Academy and Wikipedia, for example. But in the spirit of 10 years of OCW, here’s a list of 10 cool OER and OCW resources that you might not know about, but should know: