http://www.scholastic.com/kids/stacks/games/
http://www.childrensbooksonline.org/library.htm
Writing
http://www.iknowthat.com/com/L3?Area=L2_LanguageArts
http://www.randomhouse.com/kids/magictreehouse/club.html
http://www.funbrain.com/words.html
http://www.first-school.ws/t/printable-writing-paper/primary-landscape-nf.htm
http://teacher.scholastic.com/writewit/poetry/index.htm
Spelling
http://www.spellingcity.com/
http://www.kidsspell.com/
Math
http://www.coolmath4kids.com/
http://www.mathplayground.com/
http://www.funbrain.com/
http://www.usmint.gov/kids/games/
http://www.gamequarium.com/fractions.html
http://www.kidsknowit.com/
http://www.kids.gov/
http://www.scholastic.com/magicschoolbus/home.htm
http://science.hq.nasa.gov/kids/imagers/intro/story.html
http://www.nasa.gov/audience/forkids/kidsclub/flash/index.html
http://www.yourchildlearns.com/map-puzzles.htm
http://www.kidsplanet.org/factsheets/map.html
http://www.theweatherchannelkids.com/