Facebook founders Mark Zuckerberg and Dustin Moskovitz, the youngest billionaires in America, have become the youngest billionaires in history to pledge to give away most of their money. The pair are among 16 billionaires who have recently signed the "Giving Pledge" organized by Bill Gates and Warren Buffett, the Wall Street Journal reports. A total of 57 billionaires have now signed the pledge to give away the majority of their fortunes to good causes.
Other new signers include AOL co-founder Steve Case, financier Carl Icahn, and Michael Milken, the former junk-bond king who went to jail for securities fraud. "I view this as a call to others who might in their 30s or 40s use some of their creativity to get involved in philanthropy earlier in life," Milken said. Investor and new pledge member Nicolas Berggruen, 48, says he decided to sign up so he could see his wealth put to good use while he's still alive.