If you like Sudoku puzzles, the current star in the world of puzzles, go to Sudoku Craving to get your fix. Every day Sudoku Craving will feature a new Sudoku game, which for registered members will be sent directly to them via email. There is also a large archive of Sudoku games, so you won’t have to limit your Sudoky solving techniques to one game a day. Registered members will also have their scores and times saved and ranked, so they can compare themselves to other Sudoku players and track their overall progress. Sudoku Craving promises to be eternally free to players [via KillerStartUps.com].