Pope Benedict XVI has joined Twitter as part of The Vatican's continued effort to step up its social media presence. The Pope will answer questions on matters of faith that are hashtagged #AskPontifex and submitted to his Twitter handle @Pontifex (which is the latin word for "Pontiff") beginning on December 12—just in time for Christmas celebrations—according to the Vatican's senior communications adviser Greg Burke. Not surprisingly, parody accounts impersonating the Pope have already surfaced.