The following links represent a selection of resources, and many of the sites contain further links that will be of interest. Inclusion of a link does not imply endorsement of the organisation's policies or activities.

• Animals in research, Three Rs/Alternatives
• Companion animals
• Farm animals
• Captive and free-living wildlife
• Learned societies and other organisations that promote animal welfare science

Captive and free-living wildlife

• BWRC British Wildlife Rehabilitation Council.
• BIAZA British and Irish Association of Zoos and Aquaria.
• CITES
• DEFRA Department of Food and Rural Affairs.
• Electronic Zoo
• Mammal Society
• The Shape of Enrichment
• Wildlife Trusts
• WAZA World Association of Zoos and Aquaria.
• WWF World Wide Fund for Nature.
• ZSL Zoological Society of London.
• Zoo Outreach Organisation in India
• Zoos Forum

Animals in research, Three Rs/Alternatives

• Altweb The Alternatives to Animal Testing Web Site
• APC The Animal Procedures Committee.
• AALAC The Association for Assessment and Accreditation of Laboratory Animal Care.
• ANZCCART Australian and New Zealand Council for the Care of Animals in Research and Teaching.
• The Boyd Group
• CAAT The Johns Hopkins Center for Alternatives to Animal Testing.
• CCAC The Canadian Council on Animal Care.
• FELASA The Federation of European Laboratory Animal Science Associations.
• FRAME Fund for the Replacement of Animals in Medical Experiments.
• ILAR The Institute for Laboratory Animal Research.
• InterNICHE International Network for Humane Education.
• LASA The Laboratory Animal Science Association of the United Kingdom.
• National Academy Press Reading Room includes NIH Guide for the Care and Use of Laboratory Animals
• NC3Rs The National Centre for the Replacement, Refinement and Reduction of Animals in Research.
• NORINA Alternatives database.
• SCAW Scientists Center for Animal Welfare.
• UK Home Office

Companion animals

• APBC Association of Pet Behaviour Counsellors.
• APDT Association of Pet Dog Trainers
• CAWC Companion Animal Welfare Council
• Dogs Trust
• FAB Feline Advisory Bureau
• RSPCA Royal Society for the Prevention of Cruelty to Animals

Farm animals

• HSA The Humane Slaughter Association.
• CIWF Compassion in World Farming.
• DEFRA Department of Food and Rural Affairs.
• EFSA European Food Safety Authority.
• FAWC Farm Animal Welfare Council.
• OIE World Organisation for Animal Health.
• RSPCA
• Welfare Quality

Learned societies and other organisations that promote animal welfare science

• AWI The Animal Welfare Institute.
• ASAB Association for the Study of Animal Behaviour.
• BVA AWF British Veterinary Association Animal Welfare Fund.
• ILAR The Institute for Laboratory Animal Research.
• IPS International Primatological Society.
• ISAZ International Society for Anthrozoology.
• ISAE International Society for Applied Ethology.