This study will evaluate the feasibility of a network intervention to train individuals to disseminate PrEP information and motivate initial PrEP interest and knowledge of PrEP in their social networks.

The specific aims of this study are:

1. To recruit 450 participants in Chicago, Illinois, and to train them as peer change agents (randomized to cross-over groups) to disseminate PrEP information and motivate PrEP interest and knowledge of PrEP in their local networks.
2. To evaluate feasibility of the program over 2 years of participant follow-up through: 1) peer change agent exit survey; 2) peer change agent booster sessions; 3) peer change agent communication with University of Chicago PrEP program social media; 4) referrals into the project and; 5) calls into the PrEP warmline.

Inclusion Criteria:

• Lives on the South Side of Chicago, Illinois
• Born male
• Has had sex with men in the previous year
• Is an active Facebook user
• Does not have plans to leave Chicago

Exclusion Criteria:

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