THR's 2012 Digital Power 50

Along with Digital Sky, now known as Mail.ru Group, the 51-year-old Russian entrepreneur and venture capitalist runs its spinoff, DST Global. Through his companies, Milner has invested in some of the hottest tech firms and IPOs of recent years: Facebook, Zynga, Spotify and Groupon, as well as a Russian Facebook equivalent called VKontakte. In August, he led an $800 million funding round for Twitter.

PHOTOS: THR's 2012 Digital Power 50