Schoolyard bullies get nastier online

When Joanne had a row with a longtime friend last year, she had no idea it would spill into cyberspace.
But what started as a spat at a teenage sleepover swiftly escalated into a three-month harangue of threatening e-mails and defacement of her weblog. "It was a non-stop nightmare," says Joanne, 14, a freshman at a private high school in Southern California. "I dreaded going on my computer."