The HHS Office of the Assistant Secretary for Preparedness and Response is trying to harness the power of social media to respond to public health emergencies through a contest, titled “Lifeline Facebook Application Challenge,” that asks application developers to “provide actionable steps for Facebook users to increase their own personal preparedness and strengthen connections within their social networks for the sake of personal preparedness and community resilience,” Kaiser Health News reports. The competition runs through the end of hurricane season on November 4, the news service notes (Kulkarni, 8/23).