Royal Society - Science Issues: Animals in Research
- Ongoing coverage of the Royal Society's standing Committee and other policy discussions on the use of animals in research, balancing the benefits with the ethical considerations.
- http://www.royalsociety.org/landing.asp?id=1222

Ethologists for the Ethical Treatment of Animals
- Dedicated to developing and maintaining the highest ethical standards in comparative ethological research, both field and laboratory. Includes information about the society, their founders, articles and other resources.
- http://www.ethologicalethics.org/

The Johns Hopkins Center for Alternatives to Animal Testing (CAAT)
- Promoting the use of alternatives to animals in biomedical research product safety testing, and education. Mission, history, achievements, staff, sponsors, programs, publications, issues and links. Maryland, US.
- http://caat.jhsph.edu/

Institute for Laboratory Animal Research (ILAR)
- Council of experts in laboratory animal medicine, zoology, genetics, medicine, ethics, and related biomedical sciences. Details of current projects, publications, ILAR Journal, and information about animal models.
- http://dels.nas.edu/ilar/

Foundation for Biomedical Research
- Promoting public understanding and support of the ethical use of animals in scientific and medical research to improve the quality of human and animal health. In the News (from various media sources), facts, FAQ, online videos, educational materials, kids
- http://www.fbresearch.org

International Council for Laboratory Animal Science
- Promotes the ethical care and use of laboratory animals in research worldwide. Governance, symposium, Poland Conference, laboratories and membership. Ottawa, Canada.
- http://www.iclas.org/

Institute for In Vitro Sciences (IIVS)
- Alternatives to animal testing; advancing science and animal welfare together. About the Institute, news and information, meetings and events, technical notes and links. Maryland, US.
- http://www.iivs.org

Psychologists for the Ethical Treatment of Animals (PSYETA)
- Promoting research into the nature of the relationship between human and non-human animals. Information, newsletters, publications, projects and membership. Maryland, US.
- http://www.psyeta.org

Altweb - Alternatives to Animal Testing: Refinement, Reduction, Replacement
- General information, science and regulation, education resources, fact sheets and several online scientific journals. Links to scientific journals, books, articles and newsletters, reports and proceedings.
- http://altweb.jhsph.edu