Suduko Websites:
sudukopuzzles.org
Sudoku Printables
Sudoku printables page prints two puzzles per page from a large selection of hand-designed layouts and difficulty levels.
sudokugenerator.com
Sudoku, Super Sudoku and Samurai Sudoku Generator
Definitive Sudoku generator for exclusive, logic-solveable 3x3 Sudoku plus Daily Sudoku, Samurai Sudoku and Super Sudoku and more
suduku-online.com
Sudoku Kingdom - Free sudoku puzzles
Sudoku puzzles online. Select a puzzle by difficulty level. Print sudoku. Brain training game. Interactive Sudoku for mobile and tablets.