White House for Kids http://www.whitehouse.gov/kids/whlife/index.html
National Geographic for Kids http://www.nationalgeographic.com/kids/
Fun activities - by girls....for girls. http://www.missoandfriends.com/
Education Place http://www.eduplace.com
Book Adventure http://www.bookadventure.org
This Day in History http://www.sfsocialstudies.com
Smithsonian Institution http://www.si.edu/harcourt/science
The Learning Site http://www.harcourtschool.com