Other interesting tidbits:
Mark Zuckerberg is no longer the World's youngest billionaire. His Harvard roommate, Dustin Moskowitz, 9 days his junior and the third employee to Facebook, is now a billionaire, thanks to Facebook's valuation increasing 238% in 2010 (to $50b). The valuation has subsequently increased another 30% since, to $65b. On another note, Eduardo Saverin, former best friend of Mark Zuckerberg, is now worth $1.6b, based on his 5% stake in Facebook (reportedly brought down to 2% through share sales), and Sean Parker is also now worth $1.6b.
The list includes 30 hedge fund managers, 54 investment managers, and 1 drug trafficker, Joaquin Guzman Loera ("El Chapo"), of Mexico.
Moscow, with 79 billionaires, is home to the most billionaires, followed by New York City at 58.
108 of the 214 new billionaires came from the BRIC countries (Brazil, Russia, India and China).
According to Forbes, there are 24 Canadian billionaires, including newcomers Frank Stronach (Magna) and Chip Wilson (lululemon).