Ellen Zegura, Ph.D., is a Professor and the Stephen Fleming Chair in Telecommunications at the School of Computer Science, College of Computing at the Georgia Institute of Technology. Zegura’s research concerns the development of wide-area (Internet) networking services and mobile wireless networking.  Wide-area services are utilized by applications that are distributed across multiple administrative domains (e.g., web, file sharing, multi-media distribution). Her focus is on services implemented both at the network layer, as part of network infrastructure, and at the application layer.  In the context of mobile wireless networking, she is interested in challenged environments where traditional ad-hoc and infrastructure-based networking approaches fail. These environments have been termed Disruption Tolerant Networks.  She received a Bachelor's in Computer Science (1987) and Bachelor's in Electrical Engineering (1987), a Master's in Computer Science (1990) and the D.Sc. in Computer Science (1993) all from Washington University, St. Louis, Missouri. Since 1993, she has been a faculty member at Georgia Tech. She was an Assistant Dean in charge of Space and Facilities Planning from Fall 2000 to January 2003. She served as Interim Dean of the College for six months in 2002. She was Associate Dean responsible for Research and Graduate Programs from 2003-2005, and served as the first Chair of the School of Computer Science from 2005-2012.  Zegura is a Fellow of the IEEE and ACM.