I know. You don’t read TMZ and you don’t care about some cheap celebrity gossip rag. But you probably heard something about Mel Gibson’s lethal love life, or Tiger Woods’ bunker busting social schedule, or Donald Sterling’s audition tapes for a Civil War-era version of The Bachelor. TMZ breaks the stories, and then mainstream media runs with them — sometimes with attribution, almost never with a link. There is the “unique and controversial mix of scandal mongering and investigative journalism.” And then there is the vault. That’s where Harvey Levin hides the stories that haven’t been published. “The vault isn’t a secret at TMZ — even the lowest on the staff ladder have heard whispers of its existence. As to what goes up on the site and what stays vaulted, that’s a finer, more esoteric calculus — and one in which celebrities and their publicists have come to live in fear.” Buzzfeed’s Anne Helen Petersen on the down and dirty history of TMZ. (I know. You don’t read Buzzfeed either.)