I maybe a little late on this but I discovered Pandora this week.  It's online radio.  You type in one of your favorite artists and it will play music similar to that artist.  My first "station" that was created for me, I plugged in Casting Crowns and got a wide variety of Christian music.  There are no commercials, no announcers, it's free, and you can tell it if you don't like a song or band and it won't be played again.  

*This isn't one of my paid ads   It's just a cool discovery that I wanted to share with you all!