[DanielBMarkham]

The author here makes a convincing argument that there is a "cool factor" in internet apps but then overstates his case dramatically when he sees the end of FB on the horizon. Simply because a tool loses it's cachet doesn't mean that the network effects go away.

Or put more directly: sure, hip 20-somethings don't give Facebook the love they once did. Who cares? FB doesn't have to play the "I'm the coolest kid in town" game any more. As the author says, they can buy cool. All they have to do now is remain the only tool to wish Grandma a happy birthday.

Or, as some FB'er put it years ago, they're the phonebook, dammit. Their goal is to be a utility. They want to be the radio station, not the rock band.