These Links we personally know to be of great value.

Products/Services/Information 

(In no particular order, nor a complete listing)

Tack

Cow Camp Supply - Fairfield, MT 
Big Bend Saddlery - Alpine, TX

Tips Western - Winnemucca, NV

Brighton Saddlery - Brighton, CO
Eagle Brand Cowboy Tack - Athens, OH

Authors

Mike Bridges - Art of Making a California Style Vaquero Bridle Horse

Sylvia Loch - Dressage in Lightness, Balanced Horse

Mark Russell - Lessons in Lightness

Dr. Gerd Heuschmann - Tug of War

Philippe Karl - School of Legerete

Alois Podhajsky - Spanish Riding School

Anja Beran - Classical Schooling

Karen Rohlf - Dressage Naturally

Mark Rashid - Author, Aikido

Klaus Ferdinand Hempfling - Dancing with Horses

Dr. Allan Hamilton - Zen Mind, Zen Horse

Buck Brannaman - Author, Clinician

Mr. Ray Hunt - Think Harmony with Horses

Mr. Bill Dorrance - True Horsemanship Through Feel

Mr. Tom Dorrance - True Unity

Insight

Equitation Science - Horse Learning Theory Research
Light Hands Horsemanship - Clinic/Videos
Western Horseman - Magazine
Ranch and Reata - Magazine
Vaquero Enterprises - Ernest Morris

Western Dressage

Western Dressage Association of America
Western Dressage University

North American Western Dressage
Cowboy Dressage

Ranch and Stock Horsemanship

American Ranch Horse Association

Stock Horse of Texas 

Ranch Horse Association of America

Vaquero Heritage Days