I've seen a few radio stations that post their playlists. Some are realtime, some are not. KFOG is another San Francisco station that does post their playlist and I think it's fairly realtime or it was. However BBC6, which I listen to at work, does post their playlists, but some presenters do it about 5-10 minutes after the song plays, while others wait a day to post. I've even seen some Real Audio feeds that actually give you the title and artist.