Dr. Sophia Yin, DVM MS, is a vet and behavior specialist in San Francisco, and happens to also have one of the most informative blogs out there. Simply titled "Dr. Yin's Animal Behavior and Medicine Blog."
One could spend hours reading through it, but first time visitors may start here:
http://drsophiayin.com/blog/entry/the-learn-to-earn-programAnd here:
Or here:
Happy Reading!