Here are some things I've found helpful - I hope you do, too.
A head halter, such as a Gentle Leader, can be used to gently lead your dog's head around to face you instead of the darned squirrel.
The Muzzle Up! Project is a non-profit organization dedicated to eliminating the stigma around muzzles so that good dogs with issues can enjoy life outdoors, too.
Did you know that a dog can learn to love wearing a muzzle as much as they love wearing a leash?
Excellent blog from dog trainer Casey McGee of Upward Hound Dog Training on the amazing power food can have when training your dog.
"The term DINOS is intended to help the public understand that ALL dogs have a need for and a right to their personal space. Some dogs may have a stronger need for space than others." - Jessica Dolce
"The "Click to Calm" methodology utilizes the science of clicker training to effectively and creatively develop strategies that will help calm and manage the reactive/aggressive dog. This program is designed specifically for any dog that is uncomfortable around certain types of stimuli: the most common being people and other dogs. It is also a great program for newly adopted shelter dogs." - Emma Parsons
"This book reaches out to those dog owners who have to live with dogs who express themselves through aggressive behavior, but it does so in a unique and so very touching way, with compassionate, practical, and sound advice on how to deal with such behavior.”
—Claudia Estanislau, DTBC, CASI
"The most thought provoking book ever written on dog behavior and training." - Dogwise
"Norwegian dog trainer Turid Rugaas taught the world that humans can not only learn to read canine body language but to use their own body language to communicate with dogs. One of the most influential books/DVDs on dog behavior today." – Dogwise
"Outlines 8 methods for putting an end to all kinds of undesirable behavior without yelling, threats, force, punishment, guilt trips - or shooting the dog! - Dogwise