Web 2.0 is creating new opportunities for communication and collaboration. Part of this explosion is the increase in popularity and use of Social Network Sites (SNSs) for general and domain-specific use. In the emergency domain there are a number of websites, wikis, SNSs, etc. but they stand as silos in the field, unable to allow for cross-site collaboration. In this paper we describe ongoing design science research to develop and refine guiding principles for developing an SNS that will bring together emergency domain professionals in a “one-stop-shop.” We surveyed emergency professionals who study crisis information systems, to ascertain potential functionalities of such an SNS. Preliminary results suggest that there is a need for the envisioned SNS. Future research will continue to explore possible solutions to issues addressed in this paper.