This is just stuff i think about. mySpace through its saturation and its little music widgets really threatens, i think, to turn the music world upside down.
Consider a partially hypothetical situation
MySpace offeres a "band page" for free to which you can upload songs for listening pleasure of a potential 50-million-plus audience.
For $5/mo you get unlimited uploads and the ability to sell your music downloads via myspace. You charge $1.00 -- more or less -- and myspace gets a 10-cent cut.
If you, the band, play the social networking game right, you may have a moneymaker here such that you don't need a record label for major success.
Myspace essentially fills the role of label, radio and record store.
If you want a prominent spot in MySpace -- i.e. "featured artist" -- you gotta cough up the dough. If its a large amount, you'd need outside funding. Re-enter the record labels.