Taming The Wild Side

If you stick to the scientific definition for dominance and then look more closely at the dog's behavior, body language, and the reaction of the animals around him, you'll find dog behavior to be much more nuanced and interesting....than the typical, my dog is dominant or an alpha. 

More on that here!
http://drsophiayin.com/blog/entry/dominance_in_dogs_is_not_a_personality_trait