Many Men, Many Voices (3MV) is a 7-session, group-level intervention program to prevent HIV and sexually transmitted diseases among minority men who have sex with men (MSM) who may or may not identify themselves as gay. The intervention addresses factors that influence the behavior of black MSM: cultural, social, and religious norms; interactions between HIV and other sexually transmitted diseases; sexual relationship dynamics; and the social influences that racism and homophobia have on HIV risk behaviors.