52. Cecily Von Ziegesar - All I Want Is Everything (Gossip Girl, Book 3)

"Blair, Serena, and their cronies are up to their old tricks, fitting backstabbing and gossiping into a heavy schedule of wild parties, glamorous vacations, and schoolwork. These teens are privileged, upper-class Manhattanites, so money is no object. Sex, drugs, and drinking are the norm, and all of their comings and goings are faithfully recorded and reported by the mysterious Gossip Girl on her Web site. In between school and shopping, they infect all of Manhattan with cattiness and sexual intrigues, related in a salty language. Even though this is part of a series, new readers will easily catch up with the melodrama." - School Library Journal

See review below.