www.familyeducation.com/school-and-learning/grade

A site for parents offering games and resources by grade

www.infoplease.com
A kid friendly reference site

www.ipl.org/div/kidspace
A general collection of information with lots of reference materials. *Although no longer updated, still has good materials*

www.math.com
Homework help, practice, calculators and games on a variety of math subjects.

www.funbrainjr.com/
Offers games (math & reading), stories & printables for ages 2 to 6 

www.ipl.org/div/teen

A site similar to KidSpace geared especially to the needs of teens. *Although no longer updated, still has good materials* 

Games and quizzes for basic skills.

www.aaamath.com
Hundreds of pages of math skill drills, arranged by grade level and type of math.

school.discoveryeducation.com/brainboosters

An archive of puzzles and skill tests from Discovery.com.

www.jayzeebear.com/map/usa
A map game for learning all of the states interactively.

www.funbrain.com/brain/MathBrain/MathBrain.html
Math Arcade featuring many math games for grades K-8

www.vocabulary.com
Enter your own vocabulary words and this site helps you practice them

www.mortgagecalculator.net/math-calculators/

Different calculators for kids (Thanks to our friends from Montplier, Vermont for providing this site!)

www.bfscapital.com/math-business-games-for-kids/

Online Math & Business Games and printable games  (Thanks to our friends Alex & Sarah in Georgia for providing this site!)