David Rockefeller Jr. smiled often, sipped white wine and mingled with patrons at his Sailors for the Sea charity dinner in New York last month. Ticket sales and pledges exceeded his $500,000 goal before dinner was served at Christie’s auction house. By the time dessert arrived, a live and silent auction boosted the total raised to more than $750,000 for his ocean-conservation charity.
Mark Zuckerberg, chief executive officer and founder of Facebook Inc. Zuckerberg's pledge to give $498.8 million in stock to the Silicon Valley Community Foundation was one of the largest charitable
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