Some links to fellow puzzle collectors and sites that I find interesting. If you would like a link added then drop me a line. Also happy for anyone to link to my site :) 

Puzzle collectors

Rob's puzzle page - Kumiki Puzzles

Rob's Puzzle page - Journet

Puzzle Museum - England

Slocum puzzle collection at Lilly Library

Blogs

Allard's Puzzling Times

PuzzleMad

Jerry's small puzzle collection