Onlne label only charges once songs are popular

Eirikso sez, "Amie Street is a very interesting music publishing site that offer quality DRM free music for a very reasonable price. Songs start off completely free. As it gets more known the price increases up to about one dollar for a song if it gets really popular. They have also included a nifty recommendation system that gives the user rewards if he or she recommend music that turns out to become popular."

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(Thanks, Eirikso!)