Volunteer and Technical Communities (V&TCs) have the potential to augment U.N. led humanitarian relief operations with unique information management capabilities and practices. Together with formal U.N. response organizations, some V&TCs strive to generate shared situational awareness for crisis decision makers. Yet, the role of V&TCs in humanitarian missions is not fully capitalized upon. Based on a participatory observation at UN OCHA, this paper inquires how formal humanitarian actors and V&TCs coordinate their information management practices. It explores the effects of organizational and technical difference on the creation of shared situation awareness and discussed avenues for improved coordination between these profoundly different organizations.