His blueprint for success

Zuckerberg started Facebook from his dorm room on February 4, 2004. The Harvard student didn't intend for his page to go beyond Harvard, but he soon recognized the appeal of being able to connect with college friends. He brought aboard his roommate Dustin Moskovitz and later classmates Eduardo Saverin and Chris Hughes, as they began expanding Facebook to other universities like Stanford, Dartmouth, Columbia and Yale. Facebook took off, first with college kids then high school students, and in June 2006, many corporations were allowed to join. In September 2006, Facebook opened the floodgates to the general public. Today, the site claims more than 400 million active users worldwide.