The #btr11 project sought to experiment with social media platforms over 10 months to improve knowledge exchange between researchers and other groups. It held online and in-person events, built an online discussion space, and used Twitter to engage approximately 45,000 people. An evaluation found that the project helped participants better understand which platforms engage different audiences and increased understanding of Below the Radar research, but was less successful in building ongoing engagement around the research issues. Key lessons included choosing dissemination versus discussion strategies, testing different platforms, and developing trust with target communities. Risks included discussions not aligning with goals and participants feeling challenged online.