The document discusses strategies for promoting mobile health apps, including: 1. Proximity marketing allows discreet delivery of health messages to mobile phones without personal information. 2. The M2Men app was launched at Pride Toronto 2010 with various promotional strategies. Integrating social media, bloggers, and a communications strategy is important for any app launch. 3. Advertising an app within a related app saw weekly M2Men app downloads increase dramatically, showing it can be an effective promotional strategy.