<P> Sheryl Kara Sandberg ( born August 28 , 1969 ) is an American technology executive , activist , and author . She is the chief operating officer ( COO ) of Facebook and founder of Leanin.org . 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 she joined Facebook as its COO , 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 United States Secretary of the Treasury Lawrence Summers . </P>
<P> Sheryl Kara Sandberg ( born August 28 , 1969 ) is an American technology executive , activist , and author . She is the chief operating officer ( COO ) of Facebook and founder of Leanin.org . 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 she joined Facebook as its COO , 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 United States Secretary of the Treasury Lawrence Summers . </P>
who is the chief operating officer of facebook
who is the chief operating officer of facebook
Sheryl Kara Sandberg
Sheryl Kara Sandberg