I had a revelation about social media the other day--I realized that none of the truly cool people I know are any good at Facebook or Twitter or Tumblr. Usually they are too cool even to try--they would never expose themselves so casually, or be so unconsidered, or waste their time so obviously.

And maybe this is the GREAT THING about social media--cool people don't get it! So it's the happy playground of the uncool: the slightly excited, the earnest, the nerds and geeks, the goofy jokers, the...