Mark Zuckerberg, right, the chief executive of Facebook, in the office with early employees, from left, Andrew McCollum, Dustin Moskovitz and Sean Parker, in Palo Alto, Calif., May 24, 2005. Zuckerberg is facing an unfamiliar landscape in running a public company, monitored by a merciless stock market. *** Local Caption *** Bureau, interieur, employesPhoto d’archive 2005