EXCLUSIVE: Sheryl Sandberg Pledges to Give Away Half Her Fortune

The latest class of signatories to the Giving Pledge – the billionaires’ commitment, started by Warren Buffett and Bill and Melinda Gates, to give away half of their fortune during their life or upon their death – will be announced later this morning. Among the seven new "Pledgers": Facebook COO Sheryl Sandberg, the first self-made woman tech billionaire who now becomes just the second woman (after Spanx’s Sara Blakely) to pledge to give away the majority of a fortune she made entirely h...