BusinessWeek takes a look at the new iTunes rivals:
The arrivals are flocking to an already crowded market dominated by Apple's iTunes, which controls 70% to 85% of legal digital music in the U.S., depending on the estimate. The market generated $400 million in 2005 and is expected to reach $14 billion by 2011, according to Britain-based Jupiter Research.
What sets apart this fresh crop of download upstarts? One way or another, they're all departing from the pay-per-song business model that iTunes has mastered..