Daniel Singer is 14 years old and already lords over a mini tech empire that landed him $200,000 of seed funding, two patents, five employees, and some 3.1 million users. He's the creator of a website ...

T he man who at once epitomizes the hottest new growth area in tech and the burgeoning hopes for entrepreneurship in Eastern Europe twirls a marker through his fingers as he fights the mundane urge to ...