AKC - American Kennel Club

Ear bracing tips, techniques, and products:

   http://home.comcast.net/~waltmary/ear_pattern.htm

   http://www.wicketsbymel.com/

Sheltie color inheritance
http://www.athro.com/evo/gen/sheltiecalc.html

Books and magazines

Sheltie International

Sheltie Pacesetter

Sheltie Talk

The Shetland Sheepdog in America

The Book of the Shetland Sheepdog

On-line Magazine
Shelties Online