are some various websites I find interesting. Perhaps you will too.
videolectures.net (especially, see the
Machine Learning Lunch videos)
Machine Learning Department
of Illinois at Urbana-Champaign
Computation Group at UIUC
student chapter of the ACM Special Interest Group for Artificial Intelligence
student chapter of the Association for Computing Machinery
for Computing Machinery
Association for Artificial Intelligence
on the history of computing
of Machine Learning Gossip
Also, here is a customized
Google search box that emphasizes artificial intelligence related websites.