4 links
Nikon Field Guide
bythom.com
Reviews, gadgets, travel, opinions, and essays by author Thom Hogan. Also, eBooks about Nikon equipment for sale.
Nikon Historical Society
nikonhs.org
Chicago, USA, organization, news, articles, history, links, restoration, and collecting publications.
Stahlbrandt.com
stahlbrandt.com
Detailed Nikon F5 review, photos, examples, F-401 review, importing gear to Europe, and leaves portfolio.
Using and Identifying Nikon Rangefinders
cameraquest.com
Detailed overview of Nikon's post-WWII rangefinders, with advice on lens and accessory selection.