A MOOC is a Massive Open Online Course in which materials and instuction are delivered over the internet to a large number of users around the world (often for free).
This interesting video talks about online education from a founder of Coursera.
Maybe a good place to start is to participate in a MOOC. This site will help you get started: http://www.mooc.ca/courses.htm
I have signed up for E-learning and Digital Cultures through Coursera. It starts in January.