(Sample link) White House for Kids http://www.whitehouse.gov/kids/whlife/index.html
(Sample link) National Geographic for Kids http://www.nationalgeographic.com/kids/
Interactive Stories http://teacher.scholastic.com/clifford1/index.htm
Between the Lions http://pbskids.org/lions/
Math http://www.aplusmath.com/
Math: Fun Brain http://www.funbrain.com/brain/Mathbrain/MathBrain.html
Math http://www.eduplace.com/kids/mhm/
interactive reading stories http://www.starfall.com