Pandora

Pandora looks intersting in a similar way as Last.fm. It lets you search for stuff you like and then create customised radio stations based upon your tastes. You have to register to use it and it only lets US citizens join. So for us chaps in the UK we have to pretend to be yanks (I was wearing a camcorder round my neck and kept saying "awsome" as I registered) and enter a US zip code. You can get a US zip code here, just enter San Fransico and a popular street, lets say Market Street, the State code of CA and Bobs ya uncle and Fanny is a silly name etc.