When Robin B suggested having a talk on Bayes Theorem I thought it was a great idea. Bayesian Networks are a big deal in the AI world. I don't know the topic well myself, so I sent out a request for assistance to the Less Wrong mailing list (where else?). Ron Garret and Jey Kottalam have both graciously agreed to help moderate a discussion of this topic.
Please join us as we explore prediction and probability a la Bayes.
Here are some good references on Bayes Theorem: