International Society for Anthrozoology (ISAZ)

Anthrozoös - A Multidisciplinary Journal of the Interactions of People and Animals

Psychologists for the Ethical Treatment of Animals
Their journals: 

Society and Animals (current abstracts and full-text articles of past issues)

Center for the Interaction of Animals and Society, School of Veterinary Medicine, University of Pennsylvania

Center for the Human-Animal Bond, School of Veterinary Medicine, Purdue University

Program for Companion Animal Behavior, School of Veterinary Medicine, University of California, Davis

Center to Study the Human-Animal Relationships and Environments (CENSHARE), University of Minnesota

Center for the Study of Animal Well-Being and People Pet Partnership Program (PPPP), College of Veterinary Medicine, Washington State University

Human-Animal Bond Initiative - College of Nursing, Michigan State University

Center for the Study of Human-Animal Interdependent Relationships - School of Veterinary Medicine, Tuskegee University

Animal Behavior Society - a non-profit scientific society that promotes the study of animal behavior

Humans and Other Animals - site maintained by sociologist Jo Swabe at Utrecht University, Department of Animals and Society

Ethologia - Belgian Association for the Study and Information on the Human-Pet Relationship

Companion Animal Information and Research Center (CAIRC)

The American Society for the Prevention of Cruelty to Animals (ASPCA)

The Humane Society of the United States

From the archives of the law-issues mailing list: The Link Between Animal Cruelty and Human Aggression

Pet Abuse - project by Barbara Wood, Ph.D., professor of Social Work at Capital University, Columbus, Ohio

Domestic Violence and Cruelty to Animals - A study by Frank R. Ascione, Ph.D., Department of Psychology, Utah State University, Logan, Utah posted on People for Animal Rights (PAR) - an all-volunteer, non-violent activist and educational group

People for the Ethical Treatment of Animals (PETA)

FIREPAW - The Foundation for Interdisciplinary Research & Education Promoting Animal Welfare