I had a similar thought long time back about an online radio station that would allow people to set their own song lineup. An user could access the library and he or she could push that song to be aired. This way one could air a song and make others listen to. I dont know why any online radio model like this could be connected to stream like an physical station. Charge the users a kind of flat rate per month and let them select and air songs
I'm actually trying to build exactly that ... http://www.fluidplay.com. It is like media master, but it is streaming from a local PC instead of uploading your library.
oh ok. Well the model will be cool if an user can stream songs for others to listen. Say buy rights for the song and if someone has to listen to same, he can request trade or buy the song for airing it. This way he or she recovers money and could be something worth. rather than paying 99 cents and owning it and listening for few days...one can trade it and find ways to earn back 10 times :D