ASPCA Animal Poison Control Center
The pre-eminent site for information on preventing and getting emergency treatment for pet poisoning.
Common canine behavior problems
Petfinder.com’s useful resources on dealing with common dog behavior problems including separation anxiety, jumping, digging, barking and more.
Dog-care from the ASPCA
Up-to-date information about both health and behavior from the American Society for the Prevention of Cruelty to Animals. Topics covered include behavior, nutrition, poison control, veterinary medicine and the human-animal bond. There’s also a place to ask behavior questions.
Help Affording Veterinary Care
From the Humane Society of the United States, an overview of assistance and credit programs that can help pet owners get needed care for their animals.
HSUS: Dog Care
Comprehensive site covering all aspects of dog care, from behavior and training to nutrition, choosing a pet, dealing with fleas, ticks and other parasites, house-training and more.
Pet Owner’s Guide to Cancer
For anyone facing cancer in a pet, this site from Cornell University covers diagnosis, treatment options, research and case studies of animals with different kinds of cancer.
The pet owner website of the Veterinary Information Network, it contains a searchable database of articles on health and behavior issues of companion animals.