Marissa Mayer

Yahoo is turning to a longtime Google executive to try to turn around the ailing company. Effective tomorrow, Marissa Mayer will be Yahoo's new chief executive. She will be the fifth CEO in as many years.

According to Yahoo's press release, Mayer was one of Google's first employees and most recently she was responsible for the company's local, maps and location services.

Mayer's job, reports the AP, is to help the company "rebound from financial malaise and internal turmoil."