Yahoo CEO Marissa Mayer delivers her keynote address at the annual Consumer Electronics Show (CES) in Las Vegas, Nevada January 7, 2014. REUTERS/Robert Galbraith (UNITED STATES - Tags: BUSINESS ... more 
Yahoo CEO Marissa Mayer delivers her keynote address at the annual Consumer Electronics Show (CES) in Las Vegas, Nevada January 7, 2014. REUTERS/Robert Galbraith (UNITED STATES - Tags: BUSINESS SCIENCE TECHNOLOGY) less 
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Reuters | Photo By ROBERT GALBRAITH / REUTERS
Tue, Jan 7, 2014 5:41 PM EST