Facebook, the brainchild of Mark Zuckerberg, turns 20 years old on Sunday. Zuckerberg, now 39, launched the site with three others out of his dorm room at Harvard University, aiming to create a ...

what begins in his dorm room soon becomes a global social network and a revolution in communication. A mere six years and 500 million friends later, Mark Zuckerberg is the youngest billionaire in ...