AGES: 31, 40
OCCUPATION: Co-founders and President and CEO, respectively, of MySpace.com
NUMBER OF TIME COVERS: 0
PREVIOUS APPEARANCES ON THE TIME 100: 1
PRO: Founded the most popular social-networking site in the U.S., with over 106 million users and reportedly up to 230,000 new registrations every day.
CON: The site receives an unending barrage of criticism and legal trouble for issues ranging from security to copyright infringement to child safety.
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