World Economic Forum posted a photo:

Sheryl Sandberg - World Economic Forum Annual Meeting 2012

DAVOS/SWITZERLAND, 27JAN12 - Sheryl Sandberg, Chief Operating Officer, Facebook, USA; Co-Chair of the World Economic Forum Annual Meeting 2012; Young Global Leader is captured during the session 'Women as the Way Forward' at the Annual Meeting 2012 of the World Economic Forum at the congress centre in Davos, Switzerland, January 27, 2012..
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Copyright by World Economic Forum.
swiss-image.ch/Photo by Moritz Hager