And I also checked out Spotify. Forget ITunes, this one's amazing. But it's still quite new so it doesn't have stuff like various languages (I think). Apparently, there's some update for better software but I have no idea. It lets you stream music from a bunch of your friends whatever they have on their own computer, transfer music to your ipod, and stream really good music. Online, there is some pretty good similar artist search on Spotify.
Heh, for similar artists, I used to go to last.fm all the time. I might actually go search for better ones because what I did started up like many years ago. Man, I really never checked all this stuff out while I was in college. But now that I have free time, I can see all this new stuff, software, and learn more about it.