The BBC's social networking site for young children now has 100,000 users, Media Guardian reported Thursday.

MyCBBC's registration levels rose to the 100,000 mark in four months, and is designed for children ages six to 12.

Media regulator Ofcom found that although most major online social networks, such as Facebook, MySpace and Bebo, require users to be at least 13-years-old, more than 25 percent of UK children between ages eight and 11 use those sites, Media Guardian reported.

MyCBBC aims to fill the space of a safe social media site for younger children, protecting children's' names and limiting their friends to 16 other users. Additionally, the users who become “friends” must first pass a test of multiple choice comments, and profiles can only be viewed by those 16 people, according to Media Guardian.

The site allows users to use BBC children's programme material to customise profile pages, and also lets them design their own “dens” with furniture.

“Our research showed that while kids love the idea of sites like World of Warcraft, they are still quite innocent and quite nervous about joining,” said Marc Goodchild, head of interactive and on-demand at BBC Children's, according to Media Guardian. “I certainly don't think we should be monopolising this area, but we are trying to help set standards” and develop best practices for social networking sites for children.