Math
http://mathforum.org/dr.math/dr-math.html
http://www.moneyinstructor.com/kids.asp

Science
http://www.nationalgeographic.com
http://www.nationalgeographic.com/kids/index.html
http://www.chemicalelements.com/
http://www.scifair.org/
http://www.juliantrubin.com/fairprojects.html
http://kids.msfc.nasa.gov/
http://volcano.und.nodak.edu/vw.html
http://www.enature.com/home/
http://www.ucmp.berkeley.edu/diapsids/dinosaur.html
http://www.xtremebubbles.com/
http://www.zurqui.com/crinfocus/bubble/bubble.html

Language Arts
http://www.bartleby.com/
http://cctc.commnet.edu/mla/index.shtml
http://www.quotationspage.com/

Social Studies/Geography
http://www.50states.com/
http://fermi.jhuapl.edu/states/
http://www.socialstudiesforkids.com/
http://civilwarmini.com/

Drama
http://www.50states.com/
http://fermi.jhuapl.edu/states/
http://www.socialstudiesforkids.com/
http://civilwarmini.com/

SAT Preparation
http://infoscouts.com/yourhome/satprep.htm
http://www.qcardsprep.com/

General
http://www.kidzone.ws/