Marissa Mayer's ascent to the top chair at Yahoo this summer made journalists everywhere giddy. The celeb CEO's many faces--geek, business shark, mother, savant, debutante--make her a fascinating subject for profiles and speculation.
After a seemingly endless parade of Yahoo CEOs proved unable to paste together the crumbling Web giant, the tech world responded to Mayer's appointment with largely pleasant surprise. The 20th engineer at Google and Stanford grad maintains a reputation for extreme intelligence blended with canny people skills, both welcome at the fading Yahoo, which has long struggled to decide whether it wants to be a media company or a technology company when it grows up.
When Mayer announced her pregnancy hours after her appointment -- establishing her as the first pregnant CEO of a major company -- the world took note, both of Mayer's seemingly unstoppable high energy levels and of her commitment to do whatever it takes to get a big job done. Whether she'll be able to save Yahoo, however, remains to be seen.