Okay, Presi.dent Oba.ma did it. Several celebrities do it. Hell, Ery.kah Badu did it throughout her recent delivery of her third child. And yes, now your girl ( a true internet/tech junkie) is doing it. Join me on Twitter, a social networking service that allows its users to send and read other users’ updates (otherwise known as tweets). Get updates on what I’m doing, thinking, and mostly watching on TV daily in real time.