•  Thimble Collectors International  Thimble Collectors International (TCI) Web Site. Contains information about TCI to include Officers, For Sale items, and Regional Groups, 
•  Thimbleselect of Australia  has thimbles and other sewing tools for sale and a wonderful "Learn More About" section
•   The Thimble Guild ~ a whole of thimbles at your fingertips!
•   *1thimbleman  good information on US gold & silver thimbles
•   Thimbles on Wheels (TOW) is a traveling thimble group who's goal is to combine thimble meetings with intra-state, interstate, and inter-national travel. Membership is open to everyone who loves thimbles, regardless of where they live.  There are no dues.
•  EBay Auctions  Yummy thimbles for all collectors!
•  Great Collectible is an online directory of antiques and collectibles. Categories include sewing, restoration, auctions ~ you name it!

  Communities & Forums

•  CyberThimble   An "electronic round robin" for collectors of thimbles and other antique sewing tools collectors site.  Open membership, a very active thimble group.
•  Thimble Club   Online community started in February 2002, very active
•  Birchcroft Thimble Club  Sponsored by Birchcroft China, membership is free.