- Heartworm Society Everything you ever wanted to know about heartworm disease can be found here!
- Behavior problems Founded by Brian Kilcommons and Sharon Wilson, best-selling authors and recognized experts on animal training and behavior, this site is a terrific resource for advice on a variety of behavioral problems. If you want to learn more about feline housesoiling, barking dogs, aggression, or any other behavioral problem, check this one out!
- Association of Pet Loss and Bereavement We have all experienced the pain of losing a pet. The Association of Pet Loss and Bereavement has set up this site for support during this most difficult time. You will find inspirational stories, grief counseling resources, hotline number and many other resources.
- National Animal Poison Control Center This is the website of the National Animal Poison Control Center. It includes a library, links to other sites, and phone numbers for the poison control center.
- Plants Toxic to Animals, Introduction — Vet Med Library, UIUC A lot of information about toxic plants can be found here. You can search under common name or scientific name of the plant.
- The Cat Fanciers’ Association (CFA) The Cat Fanciers’ Association website has lots of pictures, as well as information on cat breeds, cat care, upcoming cat shows, and much more.
- Veterinary Schools in the US This is a great link to all of the websites of veterinary schools in the United States.
- Frontline TopSpot by Merial Sponsored by the makers of Frontline TopSpot for flea and tick control, this site has basic information about fleas and ticks as well as TopSpot questions and answers
- Rainbow Bridge Anyone who has ever lost a pet should visit this wonderful site. It is a terrific tribute to our lost family members
- West Nile Virus This site is maintained by the Centers for Disease Control in Atlanta, and has the latest information on the spread of West Nile Virus in the US, as well as information on disease transmission, symptoms, etc.
- American Veterinary Medical Association This site is a good starting point to learn more about a variety of topics, including feline injection-site sarcomas and the latest subjects in veterinary medicine
- American Association of Feline Practitioners The AAFP is like the American Medical Association for cat doctors, and has lots of good information regarding feline health
- Pet Obesity Prevention is a group of veterinarians and vet healthcare experts working to reduce pet obesity