Insulator collectors resource with information on glass and porcelain insulators, show calendar, club listings, glossary, tips and photos of rare items.

Collections of Ian Macky, including glass insulators, prism glass, and related history.

Features the 'Hemingray Database' with details on this manufacturer's insulator production, photos of shows and displays, 'Laugh Lines' comics, and trip journals.

A commercial advertising industry specific journal that serves the commercial electrical market as a source of information on international developments in power transmission and distribution.

This site provides detailed information about the National Insulator Association. Photographs related to collecting glass and porcelain insulators and significant historical data are also available.

Collector, research expert, historian's site

Photos of displays and shows, a few articles, and information about the out-of-print magazine.

Detailed information and photographs on styles, materials, colours used for railway telegraph insulators from the UK. Sections on designers, markings and manufacturers of these products. Sub sections include railway crockery, insulator fixings, telegraph