Warren Buffett and Bill Gates Rock the Philanthropic Boat

(6-18-10) Warren Buffett and Bill Gates called Wednesday on their billionaire peers to give away half of their wealth.

The pronouncement by Messrs. Buffett and Gates stems from a series of dinners the two men held over the past year to discuss the effects of the recession on philanthropy with some of the nation's richest people, including New York Mayor Michael Bloomberg, investor Ronald O. Perelman and David Rockefeller, his family's patriarch.

The result of the dinners is an invitation, called the Giving Pledge, which asks the nation's billionaires to publicly commit to give at least half of their wealth to philanthropic and charitable groups within their lifetimes or after their deaths.

Read more in the Wall Street Journal