Okay, so you've learned how to play Sudoku but don't have one of those fancy electronic handheld Sudoku gadgets and you don't get the daily paper, so how are you supposed to play? Don't worry there are tons of Free Online Sudoku sites.

Some of these puzzle can be played right in your browser, while others should be printed. But bookmarking a printable Sudoku site is probably a good ihttp://www.blogger.com/img/gl.link.gifdea so that you can print a bunch out to take with your on your commute or whatever.

Web Sudoku allows you to play on site or off with their downloadable application for both Mac and PC.
http://www.websudoku.com/

Strictly Sudoku is another site where you can play online but they have a cool AJAX number selector. It looks like a doughnut with 0-9 on it and it makes it easy to choose your numbers.
http://www.strictlysudoku.com/

USA Today's Free Online Sudoku has some dummy proofing built in to their game. You can only enter numbers that haven't been entered already.
http://puzzles.usatoday.com/sudoku/

And in my opinion, Life.com has the best looking game out there and it also have an AJAX number selector but theirs looks like a keypad on a phone.
http://www.life.com/Life/sudoku/0,26379,,00.html

With all these options for Free Online Sudoku, it almost doesn't pay to buy a book or a gadget if you want to try out some new puzzles.