Some excellent childrens sites.

CBBC

A popular site for children, educational and fun. Worth the licence fee on its own.

CBeebies

Great for younger kids, print out colouring pages of their favourite characters, play educational games and much more.

Boohbah

A site for pre-school children, very good for introducing children to the computer. It seems a bit strange to me but kids love it.

BBC Jam

Sorry about the BBC bias in this section but their websites are excellent, free to use and (apart from BBC merchandising) free from advertising. This one is both fun and educational.

CITV

To try and maintain a balance of links, here's the Children's ITV website. This site does contain a level of advertising, but still has some very good content.