The opportunity to observe the World Wide Web (WWW or Web) grow from its infancy in 1993 to the present has provided some insights into its relevance to the veterinary profession and those who interact with any of a variety of animal species. Beginning as a simple text file sent by electronic mail to friends and colleagues, the NetVet Veterinary Resources and Electronic Zoo Web sites (hereafter referred to as NetVet and Electronic Zoo) evolved into comprehensive central directories for discovering and exploring veterinary medical and animal resources on the Internet. By 1997, the Web server hosting these resources (http://netvet.wustl.edu/) averaged more than 10,000 page impressions per day. Recently, both Web sites have been licensed by the American Veterinary Medical Association (AVMA) as part of their overall Web efforts, collectively known as AVMA Online (http://www.avma.org/). Many of the resources are also cataloged in a recent book entitled Mosby's NetVet: A Guide to Veterinary Information on the Internet (1998) (http:// www. mosby. com/Mosby/netvetl). Feedback from people who use NetVet and Electronic Zoo indicates that these Web sites appeal to a diverse audience ranging from veterinarians and biomedical researchers to farmers and students of all age groups. Part of the attraction is due to the site's overall simplicity and efficiency in design, making it relatively easy to navigate and locate a particular area of interest. This article uses the outline of the NetVet and Electronic Zoo categories to highlight some of the numerous Internet resources that would be most useful to those who work chiefly in biomedical research. The basic layout of the NetVet server (http:// netvet.wustl.edu/vet.htm) is divided into major sections describing the following: what's new; a local search engine; information on veterinary careers; veterinary educational institutional Web home pages; information on a variety of veterinary careers, specialities, associations, upcoming meetings, directories, and individual home pages; mailing lists;