Fountain of Youth: The Under 30 Hall of Fame

Photograph By Joi Ito
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Shawn Fanning, Napster

As a student at Northeastern University in 1998, Fanning developed Napster, a breakthrough peer-to-peer file-sharing program, as a way to find and trade music. The service had more than 25 million users at its peak in 2001, and was shut down after a series of high-profile lawsuits, not before helping to spark the digital music revolution now dominated by Apple. Napster has since been rebranded and acquired by Roxio.