| Twisty Puzzles | Professional page from puzzle-addict. |
| Jaap's Puzzles | Puzzles from mathematical point of view. |
| Ton's Puzzles | Great page about puzzle building etc. |
| Hlavolamy | Fine Czech page. |
| Meffert's Puzzles | Here you can buy puzzles. |
| Hendrik Haak-Shop | Puzzle shop. |
