Free Online Courses

I had posted about free online courses, I did several blog posts about them. I am going to finally check some of them out. The only one I have worked with is the ALISON Free Online Courses. Which I have an account on there and have taken some of the courses on there. I am going to check out some of the other websites that offer free online courses. And I am also interested in finding out what MOOC is all about.