| Hockey Puck Puzzle | | Offers a Rubik's cube related 3D puzzle shaped like a hockey puck, with many different design patterns. |
| Passion for Puzzles | | Collector site offers information about puzzles like Rubik, includes pictures, solutions, and strategies. |
| Potty Puzzles | | Puzzle site with wooden assembly, burrs, wire and many other types of mechanical puzzles. (UK) |
| Puzzle People Page | | Directory of mechanical puzzle collectors, as well as other information. |
| Puzzle World | | Different varieties of mass produced mechanical puzzles as well as individual hand crafted puzzles and information for collectors. |
| Puzzles.com | | Home site for the Binary Arts line of mind puzzles. |
| PuzzleSolver | | Solutions for the Rubik's Cube and many other mechanical puzzles. Post questions and get answers on the puzzle message board. Has a Puzzle of the Month page. |
| Russian Puzzles | | Connect the cubes to complete the picture on each side. Makes customized puzzles from your pictures. |
| Tangrams | | Ancient Chinese puzzle consisting of 7 geometric shapes. Learn its history, make a set, or try solving one of the shapes. |
| Tavern Puzzle Collection | | Metal puzzles, created by blacksmith Dennis Sucilsky. Puzzle descriptions, and solution pages, complete with diagrams for taking apart puzzles and reassembly. Produced by Tucker-Jones House, Inc. |
| The Puzzle Museum | | Source of information concerning mechanical puzzles and their history. |
| Thomas Ball | | Offers soccer ball shaped mechanical puzzles. |
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