The Cat Fancier's Association has information on cat shows, cat breeds, cat care, as well as a showcase of top winning cats.
Cat care tips from Purina
Cornell University Veterinary School's Feline Health Center website contains information on medical topics relating to cat health care.
Ohio State University's Indoor Cat Initiative provides information related to enriching the lives of indoor cats.
Information about Feline Hyperthyroidism
The Internet Guide to Feline Diabetes.
Heartworm is not only a disease for dogs; cats can get Heartworm, too. Learn more by visiting KnowHeartWorms.org or The Feline Heartworm Society.