The Internet is a veritable mine of information. On this page, I will be adding links to sites I have found helpful for one reason or another.
Impossible Objects and Puzzles
Merlin has done a marvelous job of assembling links and pictures of Impossible Bottle makers' sites and works. The title for this site is "The Impossible Bottle Site", and quite rightly so !!!
Bernhard is a collector of puzzles from all categories. He designs many of them himself, and makes for collectors and museums. He has attended over 10 International Puzzle Parties.