If you want them to go to a safe and fun site that lets your children be interactive and learn how to sell, trade, take care of pets, and many more, get them to go to marapets! Its a virtual pet site community, lots of friendly staff, 48 hour user protection and rules that help YOUR child be safe!

http://www.marapets.com

Some nice Games (http://www.marapets.com/arcade.php) for them to enjoy while there :)