Well, UNLIKE the other two, *I* listen to the radio.
Having WORKED in it for four years (syndicated AM and Commercial FM) I still have to. When driving cross country, I like to listen to other stations to see how they compare with my old transmitter.

Since *MY* tastes vary greatly (about the ONLY thing I WON'T listen to is Rap.), I'll actually pick a random word from the dictionary.
Enter that word into some P2P sharing client.
Keep picking/testing songs until I find one I like.
Then go out and buy that artist's CDs

Strange, but it's always worked for me so far. If I end up NOT liking the artist/CD, my roomie will, or someone I know will enjoy the CD.

Me.