From Infojunkie for lifes own citation:
Start with reward obedience training on your puppy.
It will be easier and less stressful, on both you and your puppy, to start with reward obedience training. I started with aversive obedience training and it made my puppy develop even more behavioral issues as well as develop dog aggression. Even aversive based dog trainers will not use leash jerks and alpha rolls on dogs that are younger than 6 months old.
Today, I only use reward training because it is more effective for me and my dogs.
It is also important to establish yourself as the leader of the pack by controlling your dog's resources through the Nothing in Life is Free (NILIF) program. This simply means that your dog has to do something for you (e.g. a Sit) before he gets any resource (e.g. food, toys, affection, freedom). Any bullying will be ignored or will result in the removal of that resource.
Puppy Training
The Other End of the Leash: Why We Do What We Do Around Dogs
Price: $6.50
List Price: $14.95
Don't Shoot the Dog!: The New Art of Teaching and Training
Price: $8.00
List Price: $12.76
Many people make the mistake of equating pack leadership with the use of aversive training. Aversive dog trainers may tell you that for a difficult, strong-willed, dominant dog, you must use stronger, punishment based methods in order to show him who is boss.
This is not true.
One of my dogs (a Shiba Inu) is extremely strong willed and can be quite difficult but he responds much better to reward training.
http://hubpages.com/hub/how-to-train...g-dog-training