Blackberry Messenger: Free instant messaging service on Blackberry phones- pupils can block unwanted contacts but not change their ‘Pin’ (id) so these details can be widely published across the internet.
Facebook: Pupils under 13 should not have accounts.
Tinychat is a well known player in the field of hosting free video and p2p chat rooms.
You do have to give the site access to your microphone and camera, so if you don’t like to do that, you may not enjoy this site.
However, some of the chicks on here really don’t mind if you don’t feel like showing your face online.
Being in the same domain, they have launched Tinychat Next which works the same way as Chatroulette.
The user interface is a bit more refined and you need to have flash installed to even see how the UI looks like.