White House for Kids http://www.whitehouse.gov/kids/whlife/index.html
National Geographic for Kids http://www.nationalgeographic.com/kids/
PBS Kids http://www.pbskids.org
Online Reading http://www.starfall.com
Fun and Learning http://www.kidsdomain.com
Read a story written by kids like you, or even submit a story you wrote! http://www.kidsauthors.com/default.asp