Environmental Enrichment for Captive Animals - Links to animal enrichment resources, both online information and bibliographies of printed material. Includes a range of scholarly and layman references. - http://sandra.stahlman.com/enrich.html
Animal Information Network - Provides extensive animal welfare and animal rights links. - http://www.animal-info.net
CAE - Animal Welfare and the Ethics of Animal Use - A short list of links, mostly academic and professional. From The Centre for Applied Ethics, University of British Columbia, Canada. - http://www.ethics.ubc.ca/resources/animal/
World Animal Net - A worldwide network of 6,000 animal shelters and groups campaigning to improve the status and welfare of animals. - http://worldanimal.net