I have Warren Ellis on my RSS reader and on twitter. That is about all I need, as he keeps a steady flow of music heading in my direction. Not for everyone, of course. Other than that, I have been using lala.com lately for my listening needs. You can only listen to each song once (unless you add it for online listening at ten cents a song), but they tend to have entire discographies that you can listen through. Probably not good for FINDING music, but certainly a good place to listen and sample once you have found some.