Infographic of the day: The economics of social gaming

Social gaming is a phenomenon that has really come by surprise to the general public (angry birds being the perfect example), springboarding to become massive off the back of social networking.  But how much is the industry worth nowadays?  How much is it to buy a social game development company?  And just how many people have bought virtual gifts?  This is what our infographic of the day, by Mashable, answers.