Health marketers face untested technologies, unfamiliar partners, and cross-channel questions when creating a Social Computing game plan. To make smart choices, they must recognize that health users will engage in Social Computing only when they genuinely want to participate. To spark this desire, marketers must choose the tools and partners that best meet users' informational and emotional needs. To ensure engagement is sustained across channels, marketers must build standalone Social Computing resources for general needs while linking online and offline channels to deliver personalized information and support. Ultimately, health marketers must get a complete picture of user needs, use needs-based segmentation, and harness user engagement to align with and service their unique business objectives.