"What's happening, Mr. President?"

If you follow President Obama's Twitter feed, you can expect much more personal riffs and reflections to start appearing in your timeline.

From Mashable, via CNN.com:

U.S. President Barack Obama will start regularly tweeting from his official Twitter account.

...A rep also revealed that the Commander In Chief would be penning tweets of his own and that "on Twitter, tweets from the President will be signed '-BO.'"

If the same writers who did his jokes for the 2011 Correspondents' Dinner start giving him material for Twitter, this could turn into something special.