Mayer took the helm at Yahoo last year and has been credited with the first steps of what may be a turnaround for the troubled Web giant . Yahoo CEO Marissa Mayer admits , `` It 's been a very frustrating week '' E-mail glitch affected 1 % of users , Yahoo says . Score: 7
Yahoo CEO Marissa Mayer admits , `` It 's been a very frustrating week '' E-mail glitch affected 1 % of users , Yahoo says . Score: 7