The study population varies by site based on the specific racial or ethnic groups of YMSM that are targeted. African-American YMSM are the study population in Atlanta, Georgia (comparison site); Birmingham, Alabama (intervention site); and Chicago, Illinois (intervention site). Hispanic/Latino YMSM are the study population in Washington Heights/South Bronx, New York (intervention site); Jackson Heights/Queens, New York (comparison site); Orange County, California (intervention site); and San Gabriel Valley, California (comparison site). Asian and Pacific Islander YMSM are the study population in Seattle, Washington (intervention site) and San Diego, California (comparison site). YMSM regardless or race/ethnicity are the study population in Milwaukee, Wisconsin (intervention site); Detroit, Michigan (comparison site), Minneapolis, Minnesota (comparison site); and West Hollywood, California (intervention site).