Internet Millionares under 30

Mark Zuckerberg [ Facebook ] 23 years old | $700M

Andrew Gower [ Runescape ] 28 years old | $650M

Blake Ross and David Hyatt [ Mozilla ] 22 years old | $120M

Chad Hurley [ Youtube ] 30 years old | $85M

Angelo Sotira [ Deviant ART ] 26 years old | $75M

John Vechey [ PopCap Games ] 28 years old | $60M

Alexander Levin [ WordPress ] 23 years old | $57M

Jake Nickell [ Threadless ] 28 years old | $50M

Sean Belnick [ Biz Chair ] 20 years old | $42M

Kevin Rose [ Digg ] 30 years old | $31M

Ryan Block [ Engadget ] 25 years old | $20M

Aodhan Cullen [ Stat Counter ] 24 years old | $18M

Tom Fulp [ Newgrounds ] 29 years old | $15M

Rishi Kacker and Matt Pauker [ Voltage ] 24 years old | $12M

Markus Frind [ Plenty of Fish ] 29 years old | $10M

Catherine and David Cook [ My Year Book ] 17 & 19 years old | $10M

Fredrik Neij [ The Pirate Bay ] 28 years old | $10M

David Hauser & Siamak Taghaddos [ GotvMail ] 24 years old | $8M

Jermaine Griggs [ Hear and Play ] 23 years old | $5M

Jay Westerdal [ Domain Tools ] 29 years old | $5M

Source: http://www.retireat21.com/top-young-entrepreneurs/