Kris Krüg has a fascinating post about the work he’s doing with UNAIDS, and in particular a project called CrowdOutAIDS. It aims to crowdsource strategies on youth and HIV, drawing heavily on social networks.
Check out CrowdOutAIDS — there’s a lot to like here, including the four-step diagram right at the top. (I’m also very partial to that sign-up form, and may have to
steal emulate the field design sometime.)