For todays Tatb I take a look at why Twitter has become so popular.Why is Twitter So Popular with the Stars? By BeckyIn recent months and certainly since the popularity of Twilight has grown more and more stars of the Twilight saga and celebrities in general have become part of the Twitterverse. More are using Twitter to communicate with their fans and to keep in touch with the world. Why is this? What makes Twitter so popular versus sites like Facebook and MySpace?The popularity of Twitter in my...