| Puzzles.com | A great site for free puzzles, containing a selection of printable puzzles, apps, etc |
| Grabarchuk Puzzles | Apps, books and the old fashioned, physical kind of puzzles. |
| TheJigswPuzzles.com | A nice site dedicated to online jigsaw puzzles with a large selection of images to slice and dice. |
| MrPuzzle.com.au | A great selection of devious mechanical puzzles. |
| Lots more sites to come. |