Comment by rjwebb

I suppose you could train the classifier by having it record what you upvote, or which links you click on. Perhaps a Firefox/Chrome extension could do that?

Some people at Reddit were programming a recommender about a year ago: http://www.reddit.com/r/redditdev/comments/lowwf/attempt_2_w... It doesn't use a Naive Bayesian Classifier but it might still interest you.