Here is a great post from the Association of Pet Dog Trainers.
Dominance and Dog Training
Lisa Lyle Waggoner is the author of The Original Rocket Recall™: Teach Your Dog to Come. She’s a CPDT-KA, a CSAT (Certified Separation Anxiety Trainer), a Pat Miller Certified Trainer Level 2, Faculty for the Victoria Stilwell Academy of Dog Training and Behavior, a dog*tec Certified Professional Dog Walker and the founder of Cold Nose College in Murphy, North Carolina. The company’s trainers enjoy providing virtual behavior consulting and training solutions to clients around the globe and offers coaching, mentoring and behavior case support for pet professionals. www.coldnosecollege.com