Here are some great resources on dog training and information for dog trainers.
Dog Training:
Dr. P’s Dog Training: http://www.uwsp.edu/psych/dog/library.htm
Dog Training Guide: http://www.dogtrainingguide.com
Dog Trainers:
Association of Pet Dog Trainers: http://www.apdt.com
Dog Breed Information:
American Kennel Club: http://www.akc.org/
Animal & Pet Organizations:
Humane Society: http://www.humanesociety.org/