Links:

The German Shepherd Dog Club of America

The German Shepherd Dog Club of America: Working Dog Association

American German Shepherd Dog Rescue Association

The American Kennel Club

The American Kennel Club Events and Awards Search

The Detroit Kennel Club

InfoDog

Activities:

Canine Performance Events

Dog Scouts of America

North American Dog Agility Council

Therapy Dogs Inc

Therapy Dogs International

United Schutzhund Clubs of America

United States Dog Agility Association

World Canine Freestyle Organization

General Care:

The American Veterinary Medical Association

The Merck Veterinary Manual