Double T Farm - Wonderful people standing quality stallions, with fine horses for sale, specializing in performance & working bloodlines! Located in Minnesota.

Two T Ranch- an opportunity for world class Quarter Horses from the world-famous Two T Ranch in Missouri.

RB Quarter Horses - cutting and reining bred horses for sale. Located in MN.

The American Quarter Horse Association

National Reining Horse Association

The Horse Interactive   - good health information for horses

Del Mar Pedigree Query

Dream Horse Classifieds

Equine.com

UCDavis - Veterinary Genetics Laboratory

Horse Genetics—affordable DNA testing