Makes wire puzzles of various levels of difficulty.

Manufacturer of many different types of Rubik like puzzles.

Puzzle site with wooden assembly, burrs, wire and many other types of mechanical puzzles. (UK)

Provides Puzzles, Brain teasers, Toys and Games to people of all ages and skill levels

Source of information concerning mechanical puzzles and their history.

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.

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.