Zuckerberg and wife , John Arnold , gave about $ 500 million to a charitable foundation last year . Chronicle of Philanthropy releases its list of most generous givers in 2012 . Warren Buffett tops the list ; hedge-fund creator John Arnold and his wife , Laura , are second . Google 's Paul Allen , Chronicle of Philanthropy 's Warren Buffett and wife , Anne Wojcicki , round out the top five .
Zuckerberg and wife , Priscilla Chan , gave about $ 500 million to a charitable foundation last year . Chronicle of Philanthropy releases its list of most generous givers in 2012 . Warren Buffett tops the list ; hedge-fund creator John Arnold and his wife , Laura , are third . Microsoft 's Paul Allen , Google 's Sergey Brin and wife , Anne Wojcicki , round out the top five .