It looks like this isn't quite ready for other people to use it, but here is a dude who has taken his Java Bayesian classifier and integrated it with nntp//rss. This looks cool to me. We are slowly approaching the holy grail - completely automated systems that can find the information you want and classify it for you, sparing you the effort of seeking it out. I hope this goes somewhere, as I'd love to play with it. Must explore Classifier4J now.