This study was completed in Blantyre and Lilongwe in Malawi, Windhoek, Namibia, and Gaborone, Botswana. These countries were chosen based on being within the encashment area of the Open Society Initiative for Southern Africa, having generalized HIV epidemics, no data available characterizing HIV risk among MSM, and having community-based organizations that were keen and able to collaborate on a study characterizing MSM in their community.