Be a new face on Facebook!   If you’re new to the Facebook user community, don’t be shy: you’re joining around 2.7 billion users (roughly two-and-a-half Chinas) worldwide, so you’ll want to make sure you’re being as sociable as possible. And with more functionality and ways to say hello—like 3-D photos and Video Chat rooms—than ever before, Facebook For Dummies is the perfect, informative companion to get and new and inexperienced users acquainted with the main features of th