International Museum of the Horse: Breeds of the World
- Offers a comprehensive listing of all equine breeds, complete with descriptions and photos.
- http://www.imh.org/museum/breeds.php?pageid=8

Stallion Expo
- All breeds resource for stud horses organised by name, number, bloodline, farm or owner.
- http://www.stallionexpo.com

International Horse Identification Registry
- All breeds registry for owners not registered through a breed or color registry, to assist in proof of ownership. Includes history, FAQs, registration forms and pricing. Based in Deming, Washington.
- http://www.horseidreg.com/

Union Nationale Interprofessionnelle du Cheval
- A nonprofit organization designed to help any professional who wishes to purchase a horse in France and to provide information on a specific horse. Contains list of breeds, calendar of events, and information on vocational training.
- http://www.unic.chevalunic.fr

Stallion Station
- A directory of over 100 stallions, classified ads.
- http://www.stallionstation.com/

AllStallionsDirectory.com
- Directory of stallions at stud throughout the United States and Canada. Offers free advertising to stallion owners.
- http://www.allstallionsdirectory.com/

Stallions & Studs in the South West
- Listing service for stallion owners based in the South West of England. Includes photo advertising by location and instructions for placing ads.
- http://www.stallionssouthwest.co.uk

The Stallion Barn
- Directory of stallions at stud throughout the United States and Canada. Offers advertising to stallion owners and breeding farms.
- http://www.thestallionbarn.net

Horse Breeds
- An alphabetical listing, history and breed specifications of many horse breeds from the Oklahoma State University Horse Project.
- http://www.ansi.okstate.edu/breeds/horses/