He is also an active member of the Human Computer Interaction Lab (http://www.cs.umd.edu/hcil/). His research focuses on mass collaboration, consumer health informatics, alternate reality games (ARGs), and social network analysis and visualization of online interactions. Dr. Hansen completed his PhD from the University of Michigan’s School of Information where he was an NSF-funded interdisciplinary STIET Fellow (http://stiet.si.umich.edu/) focused on understanding and designing effective online socio-technical systems.