This site is about Bayesian networks. They are a popular representation for joint probability distributions, which are basic knowledge for many games. Case Based Reasoning on the Web CBR systems maintain a database of past cases, and analyze the current situation by retrieving cases which are relevant to it. CBR is not widely used for games, but it could be. A wide variety of information about reinforcement learning, including lists of publications, researchers, and software to download.
Some areas are still a bit sparse.