I came accross this web site the other day...

www.pandora.com

Type in the name of a song you like, it works out other songs/albums you might like, and lets you listen to them!

When you get to the point where it says their licence only allows you to listen to 10 songs or so, just type another song in, and start again.

Very clever site!

see what you think!

wow, thats pretty cool, its coming up with some good tunes... started off with some Iron Maiden :D

It categorises music into tempo, instruments used, vocal techniques, everything... then it works out what other music you will like!

the "Predixis MusicMagic" thing in Winamp is pretty good too, except that actually sits and analyzes every song in your collection and stores data about them... its great if you go "hmm my mood matches this song give me more similar" :) but i think it's limited to 10 song playlists unless you buy it :(

it also can reccomend new music too i think, tis rather good