White House for Kids http://www.whitehouse.gov/kids/whlife/index.html
National Geographic for Kids http://www.nationalgeographic.com/kids/
Science Textbook Link http://www.hspscience.com
Puzzles, math http://www.funbrain.com
Multiplication practice http://www.multiplication.com
Reading themes http://www.enchanted/learning.com
InspectorIwannano: character assembly http://www.12thStreetEntertainment.com
Textbook reading and language activities http://www.edhelper.com/HM
Source for practice worksheets, e.g. for multiplication facts http://www.superkids.com
Many subjects,including animals yahooligans.com
Animal report information whozoo.org
Animal report information askkids.com
Source of practice sheets for basic facts and computation math-drills.com
A variety of activities in many subjects eduplace.com
variety of math practice activities mathmagician.com