These are essentially free, non-degree (i.e. continuing ed), online courses given by companies that are partnering with some huge name universities (think Harvard and MIT kinds of universities). Right now I'm taking a class in Critical Thinking, from Coursera, given by a Duke University philosophy professor. Class is 9 weeks long and is comprised of video lectures (I watch one daily) followed by exercises and then quizzes once every two or three weeks. The massive part of the name relates to the number of students. There are thousands of people signed up for this particular course which means direct interaction with the instructor is impossible. In place of that there are discussion forums where students can get together to discuss what's being taught (as well as other online sources for getting explanations of the subject matter). So far I'm enjoying this style of learning. I don't have an issue with watching video lectures, I did a good portion of my non yet finished masters degree at SMU via video lectures though in that case I was able to email to profs if needed. And I can where, even if it they never get to the point of offering degrees, this type of learning would appeal to people who've gone to school but want to continue learning on a continuing ed basis. Like it so much that I've enrolled in 3 additional classes for next year. Two of which are music related. One is a music production class taught by a Berkley instructor and the other is a jazz improv class with vibraphonist Gary Burton, who's also a Berklee prof. For that one they want a sample of your playing. What they're going to do with thousands of samples I don't know - but I am looking forward to finding out. Anyone else have any experience with moocs?