Stanford’s offering free virtual classes in Artificial Intelligence and Machine Learning in the Fall of 2011. More than 100K have signed up. This online class

• Artificial Intelligence: Taught by Sebastian Thrun (Research Professor at Standford) and Peter Norvig (Director of Research at Google). Study group here.
• Machine Learning: Taught by Andrew Ng (Director of Stanford Artificial Intelligence Lab). Study group here. Starts October 10th, and ends December 16.