Will Facebook Friend China?

On Dec. 20, Facebook founder Mark Zuckerberg -- who was recently named Time's 2010 "Person of the Year" -- stopped by the Beijing offices of Baidu, China's leading web-search company, to chat with co-founder Robin Li. The two men, both youthful, energetic, self-made billionaires, have much in common. In addition to Silicon Valley ties (after leaving Harvard University, the now 26-year-old Zuckerberg took his company to the Valley; and the 42-year-old Li studied in the United States and worked in the Valley before moving back to Beijing), they share an affection for no-frills attire (Li's bright-colored polo shirts and windbreakers are a notch fancier than Zuckerberg's storied brown hoodies), lofty spots on their country's respective most-wealthy lists (Li ranked second on Forbes's 2010 "China Rich List" and Zuckerberg was 35th on the American version), and planetary ambitions.