1 Mark Zuckerberg Facebook 26age $13.5 Billion
2 Andrew Gower Runescape 28age $650 Million
3 Chad Hurley Youtube 30age $300 Million
4 Blake Ross and David Hyatt Mozilla 22age $120 Million
5 Andrew Michael Fast Hosts 29age $110 Million
6 Angelo Sotira Deviant ART 26age $75 Million
7 John Vechey PopCap Games 28age $60 Million
8 Alexander Levin Image Shack 23age $56 Million
9 Jake Nickell Threadless 28age $50 Million
10 Greg Tseng and Johann Schleier-Smith Tagged 28age $45 Million
Full list