We've found the following links to be helpful.

The North American Shetland Sheep Association
   Information about the Shetland breed and their wool, notices of upcoming events, and membership information, as well as a breeders list and    sheep sales site.

The Shetland Sheep Society in the United Kingdom
  Another excellent source for information about Shetlands

• Shetland Sheep Breeders
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The Shetland Museum
  Contains over 57,000 photos on-line from the Shetland Islands....history of the folk who live there, the landscape, and the animals who share
  their lives. An amazing site!

Shetland Sheep Information
   This site is full of information on all aspects of keeping Shetland sheep, with many links, and an especially good Shetland color discussion, with    basics in color genetics. An excellent resource for new shepherds.

A photo tour of the Shetland 2000 conference held in Lerwick, Shetland Isles

The Shetland Sheepbreeder's List
   This list is a friendly discussion forum on all aspects of shepherding this wonderful breed.
   Shetland Sheepbreeders Yahoo group

The Spotted Shetland List
   This is a list for those addicted to spots!

The Sheep Color Genetics List
   Valuable discussions on the genetics of color, that usually include topics that are pertinent to Shetlands.

Color Genetics Primer
   This is found on Lanette Scapillato's Primolana Shetlands site, and is a very clear and straight forward discussion of the inheritance of color in    Shetlands.

Maple Ridge Sheep Farm
   A valuable resource on Shetlands; excellent sections on flock and pasture management

Oklahoma State University Sheep Breeds
   A complete and informative (and fascinating) listing of the known breeds of sheep with photos and descriptions of each.
   See also their Breeds of Livestock section on other species.