Charles Horner of Halifax
- This site features information on the history of the company and the man who produced the Dorcas thimble and information on the formation of The Charles Horner Society.
- http://www.charleshorner.co.uk/index.html

Dorset Thimble Society
- The first non-commercial UK society for collectors of thimbles, primarily antique, and sewing tools. The site includes information about newsletters and membership.
- http://www.dorset-thimble-society.org.uk/

Philadelphia Thimble Society
- A regional group for sharing, researching and promoting information on thimbles and the collecting of sewing tools.
- http://www.philadelphia-thimble-society.com

Russian Thimbles
- A thimble collector's site includes history of thimbles in this country, information about manufacturers and artists and a photo gallery.
- http://thimble.h11.ru/home.html

Thimble Collectors International
- Organized in 1978, it has members all around the world. It provides a quarterly newsletter, publishes booklets on thimbles and related needlework tools, and holds a biennial convention.
- http://www.thimblecollectors.com/index.html

Thimbles
- A thimble collector’s site with some definitions.
- http://www.alphabetsoup.net/lockerfamily/thimbles.htm

Birchcroft Fine Bone China
- Over the years this company has produced more than 10,000 different thimble designs, many of which are collectible. The site includes the history of thimbles, types of thimbles, and a collectors club.
- http://www.thimble.net