scorecardFacebook's Sheryl Sandberg and SurveyMonkey's Dave Goldberg

Facebook's Sheryl Sandberg and SurveyMonkey's Dave Goldberg

Sheryl Sandberg, along with her husband Dave Goldberg, signed the Giving Pledge in 2014 to give away half of her wealth. While the couple didn't specify a cause, we have a feeling Sandberg's book "Lean In" might be a pretty strong indication of where their money ends up.

Dave Goldberg tragically died in May after an accident while exercising in Mexico, leaving Sandberg to care for their two children.

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