If you want to listen to David Cormier (who coined the term MOOC) about his view of what a MOOC is then this is an excellent YouTube video to help understand the original concept. It also contains an excellent description of the differences between MOOC / CMOOC / XMOOC / Hybrid MOOC and some possible future directions of different types of MOOCs.
http://www.youtube.com/watch?v=OP1ShucNGWE&list=UU60b39oNX-VM21vjTNoTNMQ&index=6
I am really looking forward to collaborating and learning with an online community and to seeing how personal learning networks form within the group.