Petfinder is an online, searchable database of animals who need homes. It is also a directory of more than 13,000 animal shelters and adoption organizations across the U.S., Canada and Mexico. Organizations maintain their own home pages and available-pet databases. From the comfort of their personal computers, pet lovers can search for a pet that best matches their needs. They can then reference a shelter's Web page and discover what services it offers. Petfinder also includes classified ads, discussion forums and a library of animal welfare articles. Petfinder is made up of animal-care professionals and regular people volunteering for their local animal welfare organizations all working together to maintain active and accurate homeless pet lists. You can find Petfinder at http://www.petfinder.com or email firstname.lastname@example.org.