Games

Funbrain.com – http://www.funbrain.com

CoolMath.com – http://coolmath.com

Puzzles

Kids Crosswords – http://www.kidcrosswords.com/
Crossword puzzles for kids, picture puzzles and more.

Word Search Puzzles – http://www.thepotters.com/puzzles.html
Printable word search puzzles on many themes.

Brain Teasers

Brain Teasers – http://www.eduplace.com/math/brain/index.html

Miscellaneous

How Stuff Works – http://www.howstuffworks.com/
Ever wondered why turkey makes you sleepy? Want to know how to do something or why something works? Check out this site!

Thunk.com – http://www.thunk.com/
Learn about secret codes and how to create your own!