NSPCC Scotland say popular social networking sites were often too easy for young people to join and urged parents to make their children aware of the risks before doing so.
In order to support this, 2 animations will be shown on prime time TV and digital spaces, as part of the NSPCC's Share Aware campaign. 'I Saw Your Willy' (pictured) and 'Lucy And The Boy' will follow the stories of two children who share too much about themselves online.
Matt Forde, of NSPCC Scotland, said: "We know that children do take risks online, sometimes without realising it. And we know some parents feel confused by the internet - out of their depth, and out of control.
"Our Share Aware campaign gives parents straightforward, no-nonsense advice that will help them to untangle the web and feel confident talking to their children about online safety."
The charity, which also operates helpline ChildLine, asked 500 parents across the UK to review websites popular with young people. They also spoke to almost 2,000 children and teenagers about which social networking sites they used.
The panel said under-13s could easily sign up to networking sites aimed at adults and teenagers. It found that "sexual, violent or other inappropriate content" was easily accessible.
The adults also said they had difficulty locating privacy, reporting and safety information. Meanwhile, young people said they worried about talking to strangers online, and the presence of sexual content on many sites.
The Scottish government and the anti-bullying charity Respectme are also piloting new online child safety classes for parents.