Jose Antonio Vargas Facebook Quotations

Facebook's headquarters is a two-story building at the end of a quiet, tree-lined street. Zuckerberg nicknamed it the Bunker. Facebook has grown so fast that this is the company's fifth home in six years - the third in Palo Alto. There is virtually no indication outside of the Bunker's tenant.

In 2007, Zuckerberg announced that Facebook would become a 'platform,' meaning that outside developers could start creating applications that would run inside the site. It worked.