Mark Zuckerberg, co-founder and CEO of Facebook, more than tripled his wealth from US$ two billion in 2009 to US$ 6.9 billion in 2010 and jumped from rank 158 to number 35. Two other Facebook co-founders have entered the Forbes list: Dustin Moskovitz is ranked at position 290 with US$ 1.4 billion, Eduardo Saverin is at rank 356 with US$ 1.15 billion. The large increase of the wealth of the Facebook founders is mainly due to the infinite exploitation of Internet prosumer labour.