Genetic technologies present unique problems for the practice of informed consent. They provide information that may affect a study participant's family or kindred, which may be identifiable as an ethnic or locally isolated population. That information may be used to construct adverse perceptions of such identifiable populations, including non-participants who may not have been informed of or consented to the analyses. To address collective implications of genetic research, we describe a process that can supplement individual consent. Our approach engages pre-existing social units in discourses about proposed research. Communal discourses can influence individuals' decisions to participate in research studies.