For young children, use a white list
For young children, make sure you use a white list. A white list is a list of approved websites. You can't go anywhere else. I set up my friend's computer for his two girls using OpenDNS and a white list. They can get to Nicolodian (sp?), PBS Kids, and a couple of others. Any other site, a web page comes up telling them that their attempt has been recorded and their parents notified.