Sheryl Kara Sandberg is an American technology executive, philanthropist, and writer. Sandberg served as chief operating officer (COO) of Meta Platforms, a position from which she stepped down in August 2022. She is also the founder of LeanIn.Org. In 2008, she was made COO at Facebook, becoming the company's second-highest-ranking official. In June 2012, she was elected to Facebook's board of directors, becoming the first woman to serve on its board. As head of the company's advertising business, Sandberg was credited for making the company profitable. Prior to joining Facebook as its COO, Sandberg was vice president of global online sales and operations at Google and was involved in its philanthropic arm Google.org. Before that, Sandberg served as research assistant to Lawrence Summers at the World Bank, and subsequently as his chief of staff when he was Bill Clinton's United States Secretary of the Treasury.