I'm not on FB but I'm tempted to buy the stock now that it's at a 52 week low - it's an almost-foolproof business model. Even if you use the service anonymously, with a VPN and fake accounts say, anything you do still contributes data of value to advertisers. And clearly hundreds of millions of users are so completely oblivious to privacy concerns that they can't wait to share their latest tidbit of personal info with the world. Like the old tobacco companies, once enough people are hooked on your product it's like a license to print money...