"I mean, do you know anyone who really wants to sign up for Facebook but hasn't gotten around to it yet?" 12 year olds. And so Facebook's customer development

"I mean, do you know anyone who really wants to sign up for Facebook but hasn't gotten around to it yet?" 12 year olds. And so Facebook's customer development changes to that of cigarette manufacturers. As long as 12 year olds continue to turn 13, Facebook can replace the thirty-somethings that drop off.