Linda Tellington Jones 
TTEAM offers a training approach that encourages optimal performance and health and presents solutions to common behavioral and physical problems. Information about the methods, training workshops, practitioner directory.
http://www.lindatellingtonjones.com/Parelli Natural Horsemanship 
Information about the training system. Includes links to national Parelli sites, books, videos, lists of certified trainers and clinic schedules.
http://www.parelli.com
Horse Training From the Ground Up 
Offers articles by different trainers on natural horsemanship methods.
http://horsetraining.8k.com
Of One Mind - Talking Horses 
Offers essays and articles by Gincy Bucklin, Certified Expert Instructor by the American Riding Instructor's Association.
http://www.xpos.com/ofonemind/gincy.htm
The Art Of Classical Riding 
An online school discussing the foundations of classical equitation in clear and simple instructions for the everyday rider. Also includes product recommendations.
http://www.artofriding.com/
Training-Horses List 
Email list for trainers and horse owners regarding training advice, open to any breed and discipline.
http://groups.yahoo.com/group/training-horses/
Animal Holistic Health 
Promoting classical riding and holistic health to horse owners. Includes articles on training, health, training tips, links and an e-mail discussion list.
http://www.animalholistichealth.com/horseframes.htm
Clicker Training for Your Horse 
Presented by Alexandra Kurland. General information on clicker training, sample chapter of Kurland's book on clicker training for horses, photo album and success stories.
http://www.theclickercenter.com/
Wild About Horses Equestrian Center 
Indiana. Rider instruction, horsemanship, and stable management training. Includes profile, photographs, service descriptions, and contact details.
http://www.wildabouthorses.net
Equine Behavior - The World of the Horse 
Weblog by equine behaviorist with a Master of Science in Animal Sciences. Information about horse behavior in relation to reproduction and breeding, feeding and nutrition, herd hierarchy.
http://www.marebehavior.com