I agree that Soundcloud is a great place to find unknown artists and new music, just as MP3.com was 16 years ago. Perhaps it can be larger than Spotify in terms of users and VC money that it can attract. None of these services will be valuable businesses as their revenue model is fundamentally flawed and the competition runs essentially the same business on much lower margins.<p>The largest music streaming site on the web is Youtube and it charges nothing for the service, nor generally admits, that it holds this distinction. The consumer will pay, but very little, when there is a free alternative.