Shaquille O'Neal is speaking the truth about Twitter: "It's 140 characters. It's so few characters. If you need a ghostwriter for that, I feel sorry for you." O'Neal must have a lot of pity to spread around, then: The New York Times reports that celebrities like 50 Cent, Kanye West, Britney Spears and politicians like Barack Obama and Ron Paul all rely on teams of personal assistants to ghostwrite their tweets. Says 50 Cent's ghostwriter Chris Romero, "He doesn't actually use Twitter, but the energy of it is all him."