Sergey Brin, 35, Google co-founder, $12bn
Larry Page, 36, Google co-founder, $12bn
Sheikh Mansour Bin Zayed Al Nahayan, 39, Abu Dhabi ruling family,
$4.9bn
Daniel Ziff, 37, Ziff Brother Investments, $3.5bn
John Arnold, 35, Centaurus Hedge Fund, $2.7bn
Prince Albert von Thurn und Taxis, 25, $2.1
Kenneth Griffin, 40, Citadel Hedge Fund, $1.5bn
Chu Lam Yiu, 39, Huabao International, $1.5bn
Jerry Yang, 40, Yahoo co-founder, $1.1bn
William Ding, 38, Netease founder, $1.1bn
Andrey Melnichenko, 37, MDM Bank founder, $1bn
source: Forbes