85% of children aged 9-12 using Facebook

Despite a minimum age limit of 13 years, 85% of nine to 12-year-olds are using social networking website Facebook, causing principals and teachers to have to deal with cyberbullying on an almost daily basis.

Irish anti-bullying service Bully 4U surveyed 1,720 children between nine and 17 years over the course of two months, asking them about their web usage.

One section of the survey asked different age groups whether they were on Facebook and Twitter.