Warren Buffett, Bill Gates ask billionaires to give away wealth | Reuters

Warren Buffett, Bill Gates ask billionaires to give away wealth | Reuters: "Buffett, who made his fortune with insurance and investment company Berkshire Hathaway Inc (BRKa.N) (BRKb.N), Gates and his wife, Melinda, have held a series of dinners with a couple dozen rich Americans in the past year to urge them to make a philanthropic pledge."