Educational Games

 
http://www.starfall.com  
http://pbskids.org  
http://www.primarygames.com  
http://www.funbrain.com  
http://www.funschool.com  
http://www.gettech.org    

Homework Resources
http://www.rif.org/readingplanet   http://nces.ed.gov/nceskids
http://www.learningplanet.com   http://school.discovery.com
http://www2.sratechknowledge.com   http://www.eduplace.com
http://teacher.scholastic.com   http://www.factmonster.com
http://www.bobthebuilder.com   http://www.homeworkhelp.com
http://www.thomasandfriends.com   http://www.homeworkspot.com
http://www.nickjr.com   http://www.infoplease.com
http://www.noggin.com   http://www.jiskha.com
      http://www.kidinfo.com
 

Search Engines

   http://www.kidzone.ws
http://www.zoo.com   http://www.mentorplace.org
http://www.ajkids.com   http://www.nationalgeographic.com
http://www.ask.com   http://www.skoool.ie
http://www.google.com   http://www.smithsonianeducation.org
http://www.yahooligans.com   http://www.washingtonpost.com
http://www.yahoo.com      
http://www.msn.com    

History
      http://americanhistory.about.com
 

Library Resources

   http://www.history.org/kids
http://library.thinkquest.org   http://www.historyplace.com
http://www.readwritethink.org   http://www.socialstudiesforkids.com
http://www.refdesk.com      
http://www.tumblebooks.com    

Math

http://www.worldbookonline.com

   http://www.coolmath.com
      http://www.mathnerds.com
      http://www.rainforestmaths.com
      http://nlvm.usu.edu/en/nav/vlibrary.html