www.gnod.net This site has three sections: music, movies, and books. You enter three (artists, movies, or authors) you like, and it suggests another you might like. Every time you respond with "I like it", "I don't like it", or "I don't know it", the program tracks it and adds your opinion to the database. After giving your opinion on a few suggested items, it will give you the whole list with your responses if you want to check out the items you didn't know. The selections are pretty accurate.