Below is a quick video explaining the MOOC concept.
Some of the main platforms I have come across are
I'm very interested in this concept; how it can benefit my own learning and others. More importantly, can I get my students interested and engaged in this. I have already found a course that I might be doing later this year, Emerging Trends & Technologies in the Virtual K-12 Classroom from the University of California, Irvine through Coursera. I find the prospect exciting that I can learn new skills and develop my understandings of concepts. I will keep you posted on what i decide and please let me know if you have had any experience with MOOC's.