Glass Insulators were first commercially produced in the 1850s for use with batteries, telegraph lines and lightning rod systems. As telegraph, telephone, fire alarm, railroad signal, high voltage transmission and radio antenna system technologies developed, the need for insulators grew very quickly and reached its peak sometime in the second decade of the 20th Century. Yesterday's technology moved electricity over open steel and copper wire. Today's technology moves electronic signals and electric power from point to point in many different ways. Advanced composite materials, ceramic compounds, plastic conduit, glass fiber, and microwave broadcast have all conspired to render the glass insulator of yore obsolete. Although pioneering collectors tell stories of finding and swapping old insulators as early as the end of WWII, insulator collecting as a formal, organized hobby really didn't begin to emerge on the antiques and collectibles scene until the mid-1960s. In the USA today, the National Insulator Association has thousands of members. This category is about collecting insulators. These sites contain information about the acquisition, display, identification, and history of these collections. This category is dedicated to the dreams and pursuits of insulator collectors around the world.
The insulator-related site that you are planning to submit should contain original content that is of interest to insulator collectors, pertaining to the acquisition, identification, display, and/or history of insulators. Please search the directory thoroughly to ensure that this is the most appropriate category for your submission.

Sites for insulator clubs should be submitted in the ''Clubs'' subcategory (Recreation:Collecting:Insulators:Clubs).

Sites offering insulators and related items for sale which collectors would be interested in, should be submitted in the ''For Sale'' subcategory (Recreation:Collecting:Insulators:For_Sale).

Sites of modern-day commercial manufacturers (not offering information of interest to collectors of antique insulators) should be submitted in the appropriate Business subcategory (Business:Electronics_and_Electrical:Electromechanical:Hardware:Insulators_and_Insulation).

Clubs for collectors of electrical insulators and related items ('go-withs').
Insulator sites which are not directly associated with an insulator-collecting club should be submitted in the parent category (Recreation:Collecting:Insulators).