I still have no idea if I'm posting this in the right place or not, but this seemed like the best forum.

I've finally published my book, Sudoku Most Foul, at lulu.com. The book contains 150 puzzles, a section on techniques that can be used to solve them, a section of detailed solutions, and short solutions (the solved grids). The specialty of the book is to go beyond what typical books call "hard". A good chunk of the puzzles can't be solved without trial and error--though they're all valid puzzles with just one solution.