White House for Kids http://www.whitehouse.gov/kids/whlife/index.html
National Geographic for Kids http://www.nationalgeographic.com/kids/
Houghton Mifflin Reading Series http://www.eduplace.com
Fun Brain http://www.funbrain.com
Fact Monster http://www.factmonster.com/
Discovery Education http://school.discoveryeducation.com/
Awesome Library http://www.awesomelibrary.org/
Kaboose http://funschool.kaboose.com/?level=5
Silly Books http://sillybooks.net/
Story Line Online http://www.storylineonline.net/
Scholastic For Kids http://www.scholastic.com