Andrew, I fail to see the problem if a fully licensed radio station is doing it.
I can see if some kid is running a shoutcast server from his dorm room, but these are radio stations that have the permission to broadcast these songs. I thought the whole point of a radio station was to increase the publicity of an album.
Guess what - streaming internet music does increase publicity! When I in college, the only local radio stations were country and pop. YUCK! I used the web feed from a rock station in a town 4 hours away, or sometimes Rebel Radio out of Chicago to hear my music.
If I hear a radio station broadcast a song whether it be over the air waves or over the internet, I like the song, and I buy the album because of it, WTF is the problem???