This Web site contains the online version of the Merck Veterinary Manual, provided on a not-for-profit basis by pharmaceutical manufacturers Merial and Merck and Co., Inc. This "single most comprehensive electronic reference for animal care information" covers over 12,000 veterinary topics. The scrollable table of contents and advanced search tool allow for quick access to the enormous body of...

Although subtitled "Veterinary Medicine Online," this site is aimed primarily at ordinary users and pet owners rather than professionals. The site offers a respectable collection of information and resources, much of it produced by general practitioners and board certified specialists on staff at VetCentric. Offerings include a veterinary medical encyclopedia, a knowledgebase/FAQ, glossary, weekly...