Sheryl Kara Sandberg (/ˈsændbərɡ, bərɡ/; born August 28, 1969) is an American businesswoman, activist, and author. As of August 2013, she is the chief operating officer of Facebook. In June 2012, she was elected to the board of directors by the existing board members becoming the first woman to serve on Facebook's board. Before Facebook, Sandberg was Vice President of Global Online Sales and Operations at Google, and was involved in launching Google's philanthropic arm Google.org. Before Google, Sandberg served as chief of staff for the United States Secretary of the Treasury.In 2012 she was named in the Time 100, an annual list of the 100 most influential people in the world according to Time magazine. As of January 2014, Sandberg is reported to be worth over US$1 billion, due to her stock holdings in Facebook and other companies.