PuzzleJosh's Flash Arcade
Josh's Flash Arcade has over 750 + free online flash games with various categories to choose from including: Action, Strategy, Puzzle, Shooters, etc.
http://www.joshpwns.com
Sudoku
Lots of free Sudoku puzzles. The puzzles can be played online, printed out and even exported as PDF-File.
http://www.sudoku-puzzles.net/