ABC News’ Rick Klein reports: Facebook and Twitter were a-buzz with a new arrival today: President George W. Bush.The former president, who has a book set to publish in November, launched a new Facebook page.Also new to the interwebs today: a Twitter feed, purporting to also be Bush’s. But that account is actually a fake, according to David Sherzer, a spokesman for the former president. He also confirms that the Facebook page is legitimate – “an official feed of the Office of George W. Bush,” he told ABC News.Confused? So were some former Bush aides who urged their followers to also follow @George_WBush today.One aide even told ABC that he was told by an official in the president’s foundation that it was legit – though that was, apparently, a miscommunication. An official feed, @GWBPresCenter, was launched last week by the George W. Bush Presidential Center.To recap: The Facebook page you can find at facebook.com/georgewbush is the real deal. Twitter @George_WBush is fake. Twitter @GWBPresCenter is real. (None are particularly interesting.)There’s no indication that the former president himself has done any of the Tweeting or Facebook posting. But whoever is controlling the (fake) @George_WBush has a sense of humor: That account is following four other accounts – the Republican Party, Sen. John McCain, Sarah Palin, and President Obama.Not being followed: The (real) account of @LauraWBush.