http://www.arlington.com.au/index.html

KidSafe Explorer is a children's web browser that allows parents/teachers to
control which sites children may access. Access is controlled by a password
protected and encrypted list of KidSafe Favorites defined by the Supervisor.
The Favorites list can also be shared in a classroom environment to simplify
administration. Extra security can be applied such as blocking access to other
programs. Kidsafe Explorer features a simple and colorful interface making it
appealing to children.