The following Youtube video is the first lesson of th 6.00 MIT course. It is a fantastic introduction to computer science.
This comment come from a friend’s blog, I’d really like to have the same kind of lessons here in our Italian university, but I’m afraid not…

However, I’m going to include the video from Youtube.

[youtube]http://www.youtube.com/watch?v=k6U-i4gXkLM[/youtube]
Awesome!