www.pandora.com is a great internet radio site. A friend steered me towards it (thanks Galen!) and I love it. What you do is tell it a group or song that you really like. It will then select songs that are actually what you requested or similar to them. I think they only play indie bands, so there’s a good chance that you haven’t heard of the people that come up, but that’s a good thing! I put in Bratmobile, Southern Culture on the Skids, Fugazi, and Billy Bragg and I love what they’ve done so far. You can also set up different “stations” that play different types of music. You gotta have broadband, but it’s a quick way to get an injection of coolness and bands you’ve never heard of.