After emerging with a few scratches from the late-night wars, Conan O'Brien laid low for a while. But then he started a Twitter account on Feb. 25 and quickly entered the realm of Twitter stardom. Like clockwork, O'Brien posts a witticism every day, keeping fans entertained while keeping his name in the spotlight. It doesn't hurt that Conan's Team Coco is a Twitter-friendly demographic, one that supported his social-media efforts while Conan went on a nationwide tour and started a new show on TBS. His bio on Twitter says, "I had a show. Then I had a different show. Now I have a Twitter account." But it really ought to say, "I have a Twitter account, which helped me get a new show."