From TechCrunch: “With social media here to stay, it’s become a powerful tool for marketing amongst musicians, especially when they have fans who do so much of the heavy lifting by promoting the artist. Some of those fans are genuinely ‘super fans’ who act as, basically, unpaid promoters. And they can be powerful. For instance, Justin Bieber fan account @JustinCrew has over one million followers on Twitter. But identifying them, and then rewarding them for their dedication is a problem that needs solving.”