Hi everyone, I just put this site up last night. Please take a look and let me know both good and bad. My wife kept buying sudoku books all the time - thats what gave me the idea. Anyway... here it is.... http://daily-sudoku-challenge.com
People spend the small amount for convenience and ease of use. Sure, there are many places to play Sudoku online but its something best done the old fashioned way with pencil & eraser. This is cheaper & more convenient than buying the sudoku puzzle books which somehow are still selling massively (despite Google searches)
I think it's a good idea with some potential. People pay for all kinds of products and information - many which are freely available on the Internet.
I think your website is perfect. Maybe try to get the user engaged a bit more with more social networking stuff. Besides that, keep the content coming on a regular basis and you will be successful in no time at all!
Thank you guys! Appreciated stuff from each of you! @robowarrior I took your advice and added an exit pop up with an opt-in for free sample! Thanks for the input.