If you're looking for a library of streaming radio stations, you may want to take a look at
www.winamp.com/player . This is 1 cool multimedia player that can be downloaded free or upgraded for simply $19.95 which is what I did. This player has a library that's just loaded with both audio and video. I've seen over 1000 radio stations in their library and you can catagorize them by gendre. I have it simply for it's radio library as I do my downloading via Windows Media Player. I'm always having to remind Windows who my primary player is after using Winamp but that's no big deal.
I listen to Pandora occasionally but unfortunately, it won't accept my DFX 8.3 Audio Enhancer like all the major multimedia players will so I lean heavily on Winamp. Another suggestion for you if you're into streaming audio from your computer thru your home system, try
www.fxsound.com for Winamp. I also use this on my WMP library and it WILL take music to the next level. I use a simple 2/1/1/1/2 tuning which is very little actually but that's all my system really needs. This is my Audio Nervosa,,,,,, well actually my WMP library is but you're asking about streaming.
Robin