A Georgia appellate court has held that parents are liable for material their children post on Facebook, which sets a new legal doctrine.

The appellate court held that parents were negligent in not forcing their child to remove a Facebook post that allegedly defamed a girl in his class. The page used commonly available apps to distort the girl’s image and make her appear fat and also included false comments that implied she was promiscuous. Even after it was brought to the boy’s parents’ attention, the page remained up for 11 more months until Facebook deactivated it.

The parents have said they will appeal to the Georgia Supreme Court.

Read more and see some case documents at The Wall Street Journal law blog.