I signed up for all three Stanford courses to see how they are before deciding which are worth the time investment. I have received a notification from both the Databank class and the Machine Learning class but not from the AI-class.
By the way: does LW have a learning group or something for this?
Here you go: http://www.ai-class.com/
They're still working out kinks in the site, and no homework is up yet, but the initial set of lectures (really really basic "what is AI/welcome to the first day of class" type stuff is up), so if you signed up, then sign in and hopefully the site will work for you.