Mark Zuckerberg's social network has lost much of its swagger over the past year. He once thought nothing of poaching Google's best and brightest; then Google started poaching back. After Facebook's flacks learned that Google had scheduled its holiday press party on December 8, the same day as Facebook's planned media fest, they rescheduled for December 10, rather than fight for reporters' affections. Embarrassing — especially considering that Facebook's top PR guy, Elliot Schrage, came from Google himself.