Music: Programming Indiespace

Soundflavor matches your preferences to its database of 182,000 songs and directs you to music it thinks you'll like, with 30-sec samples so you can decide if you agree. Even better, Last.fm creates a profile of your tastes based on your 200,000 favorite songs and uses it to program -- employing "probalistic latent semantic analysis" -- a free radio station just for you. It's not on the money 100% of the time -- it thinks there is a kinship between Fred Neil and Van Dyke Parks, fr'instance, but all in all it delivers on its promises.
<http://Soundflavor.com/Pages/> <http://www.Last.fm/>