One thing Sandy; in particular, Staten Island, taught me is that the very first relief and recovery on the ground occured through the work of the victims of disasters themselves. It is often difficult for government, or even VOADs to integrate the overall relief effort with what what these "neighbors helping neighbors" are doing. These spontaneous groups can be supported by, coordinated with, and allowed tech support, via existing smart-phone use in the field. The people of Staten Island were on the ground coordinating a relief effort, and, knowing myself how FEMA must operate, there are often dismissive- or antagonistic feelings over "FEMA Bureaucracy" as well as similar feeling regarding national VOADs.
FEMA can play a visible, active role in providing the organizational framework to bring to the table groups that, by their very nature, would be considered "irregular" and thus, unsupported. FEMA could develop a community-based disaster management program that supports social media.