Open2Study Game Development course
Just in case anyone reading this is interested, Open2Study (Open Universties Australia's MOOC project) has a free four week introductory course on Concepts in Game Development on at the moment. It's in its second week, but it's a very light workload (some videos and a short quiz) and takes no time at all to catch up (I did the first week in a short burst in one evening.)
It doesn't go into any depth, but it's fun, and the lecturer (from Monash university) is engaging.
(I'm a bit of an MOOC addict. Currently taking courses in coding, Greek and Roman mythology, Chinese culture, Google/media studies, and self/career development. I miss university, can you tell?)