I'd say it's the defining movie of my early-mid 30's.
I like FB, although some weeks I check it constantly and then I won't check it for months. It's weird how I'm "friends" with all these people from high school but I never talk with or interact with most of them in any way besides the initial "add friend" click.
Did you guys know David Fincher has a movie coming out about the origins of Facebook? Called The Social Network or something like that. Perhaps one day some visionary director will make the film of "Rona Jaffe's The Action Team."