PuzzleSolver
- http://www.puzzlesolver.com/
- 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.
Tangrams
- http://www.tangrams.ca
- Ancient Chinese puzzle consisting of 7 geometric shapes. Learn its history, make a set, or try solving one of the shapes.
Tavern Puzzle Collection
- http://www.tavernpuzzle.com
- 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.