Puzzle and Strategy Games
N Bloxx
http://www.neave.com/games/nblox/
Simon
http://www.neave.com/games/simon/
Hexxagon
http://www.neave.com/games/hexxagon/
Math Playground Logic Games
http://www.mathplayground.com/logicgames.html
SuperKids Games of Logic
http://www.superkids.com/aweb/tools/logic/