Hello,
I just found this wordpress blog beacuse I was looking for a javascript sudoku program which I found here, and it is quite nice.

Still, one I really love is one I found here:
http://www.lemo.dk/sudoku/

There you can download a program which was made with C.
It creates new sudokus, solves them, and gives them out as PDF file with solution and step by step explanation.

There you can also fetch sudokus from a list or create up to a 100 sudokus at a time as PDF file with solutions included at the end.

I whink thats one of the best sites I have seen until now.

Nick: how about putting some colour into the blog?
Here I have my wordpress testblog: http://www.umm-pur.com/wordpress
Well, its just for testing 🙂 Colourful enough 🙂