Bill Gates is no longer the world's richest man, according to the 2010 Forbes list of the world's billionaires. That position now belongs to Carols Slim Helu, who's worth $53.5 billion thanks to owning what seems to be virtually every segment of Mexico's telecommunications infrastructure, not to mention grocery stores and a hefty chunk of The New York Times Company.

Gates is now worth $53 billion, up thanks to an uptick in Microsoft shares over the past year. His personal site, The Gates Notes, features a list of "Things I'm Thinking About" that includes "Urgent Need for Help in Haiti" and "Why Vaccines Matter," which makes me think that the former Microsoft CEO isn't exactly crying himself to sleep tonight on a bed of $100 bills over his second-place finish. His Twitter feed also gives no indication that he's upset over Helu being worth $500 million more.

Then again, Gates held prime position among the world's wealthiest for 14 of the last 15 years, usually followed in second place by his good buddy Warren Buffett. A streak like that had to end at some point.