National Geographic for Kids(people and places) http://www.nationalgeographic.com/kids/
Enchanted Learning http://www.enchantedlearning.com
AAA Math http://www.aaamath.com/
Geography 4 Kids http://www.geography4kids.com/index.html
Encarta Encyclopedia (atlas) http://encarta.msn.com/artcenter_/browse.html
Fact Monster http://www.factmonster.com
Academic Kids http://academickids.com
Yahooligans Web Site for Kids http://kids.yahoo.com