UnderstandingPrejudice.org: Links on Prejudice - Homo Stereotypus: Wired for Trouble

Prejudice in Any Language (an overview)
Tolerance.org (Southern Poverty Law Center)
CivilRights.org (Leadership Conference on Civil and Human Rights)
Partners Against Hate (joint project of ADL, LCEF, and CPHV)
Project Implicit (research and demonstrations on hidden biases)

Psychological Research on Prejudice:

Psychology Organizations with Members Who Study Prejudice

American Psychological Assn. (world's largest psychology group)
Association for Psychological Science (focuses mainly on research)
Assn. of Black Psychologists (addressing needs of Black community)
Association for Women in Psychology (a feminist voice since 1969)
European Association of Social Psychology (>1,000 members)
Intl. Assn. for Cross-Cultural Psychology (members from >60 nations)
Society for Experimental Social Psychology (scientific organization)
Asian Assn. of Social Psychology (Asian-Pacific psychology group)
Soc. of Southeastern Social Psychologists (students & professionals)

APA Divisions with Members Who Study Prejudice

Society for the Psychology of Women (Div. 35)
Society for Personality and Social Psychology (Div. 8)
Society for the Psychological Study of Ethnic Minority Issues (Div. 45)
Society for the Psychological Study of LGBT Issues (Div. 44)
Society for the Psychological Study of Social Issues (Div. 9)

Sociological Research on Prejudice:

Sociology Organizations with Members Who Study Prejudice

American Sociological Association
Association for Applied and Clinical Sociology
Association of Black Sociologists
Australian Sociological Association
British Sociological Association
Canadian Sociology and Anthropology Association
European Research Centre on Migration and Ethnic Relations
European Sociological Association (academic and nonprofit)
Intl. Sociological Association (NGO associated with UNESCO)
Pacific Sociological Assn. (has prejudice-related committees)
Progressive Sociologists Network (moderated listserv)
Society for the Study of Social Problems (interdisciplinary)
Sociologists for Women in Society (fostering social equality)

Sociology Divisions/Sections with Members Who Study Prejudice

Animals and Society
Collective Behavior and Social Movements
Latino/a Sociology
Race, Gender, and Class
Racial and Ethnic Minorities
Sex and Gender
Sociology of Sexualities

British Sociological Association:

Gender Study Group
Race & Ethnicity Study Group
Sexual Divisions Study Group
Study Group on Social and Public Policy
Violence Against Women Study Group

Gender Relations in the Labour Market
Sexuality
Social Movements

Racism, Nationalism and Ethnic Relations
Women in Society