This article includes a step by step guide;  http://www.quickanddirtytips.com/pets/dog-behavior/how-introduce-dogs-each-other-part-I  
 
Video from Victoria Stilwell on the topic of dog/dog introductions;  http://www.youtube.com/watch?v=LlGIZtTrg60

Thinking of allowing your dog to "greet" strange dog/s during your on-leash walks? Just say no!  Click here to read why it's really NOT a good idea http://www.quickanddirtytips.com/pets/dog-behavior/reduce-chance-dog-aggression-leash

Is your dog shy? Does he bark at dogs or people? If you're not sure class is right for you and your dog, read this.