In April 2006, Losse says Zuckerberg told the company that subsidies of $600 a month would be given to employees who decided to get a living space within a mile of the Facebook headquarters. "'Do you live within the mile?' employees asked often in the fall of 2006, as if testing each other's commitment to the company cause," she wrote. The reasoning behind it, she said, was that workers could be nearby if the site crashed or there were other problems. However, Losse said the policy had a different effect. "We didn't have a nonwork life," she wrote. "Life was work and work was life."

Facebook/Reuters
Mark Zuckerberg rings the opening bell for Nasdaq remotely.