Celebrities love using Twitter, but they don’t always like writing. So some stars are using Twitter to communicate with their fans, but letting somebody else write the 140-character messages. 50 Cent is only one of many famous people who lets his web manager update his Twitter feed; singers, actors and politicians have turned Twitter into a committee effort. But some celebs aren’t too happy about the as-told-to Twittering. Shaquille O’Neal, who says he writes all his Twitters himself, says that “If you need a ghostwriter for that, I feel sorry for you.”