Good Girls by Laura Ruby

I enjoyed this young adult novel. It also made me glad I'm not growing up in today's technology-filled world. The protagonist makes one stupid mistake, someone captures it on a cell phone and sends it around to everyone in school, and next thing you know she's persecuted and treated like a slut and everyone hates her. (Thank God when I made stupid mistakes in high school, no one was standing there with a camera documenting it. That would have made the experience indescribably worse than it already was.)