| 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. | 
