I have done something like this using Mason, which can help one set up simple social network links and diagrams. For a simple introduction to turning social networks into diffusion models, see: Valente, T. W., & Davis, R. L. (1999). Accelerating the diffusion of innovations using opinion leaders. The Annals of the American Academy of the Political and Social Sciences, 566, 55-67. Tom Valente's recent book is also recommended: Valente TW (2010) Social Networks and Health: Models, Methods, and Applications [Hardcover], Oxford University Press Cheers! John John W. McManus, PhD Director, National Center for Coral Reef Research (NCORE) Professor, Marine Biology and Fisheries Coral Reef Ecology and Management Lab (CREM Lab) Rosenstiel School of Marine and Atmospheric Science (RSMAS) University of Miami, 4600 Rickenbacker Causeway, Miami, 33149 <mailto:[log in to unmask]> [log in to unmask] <http://ncore.rsmas.miami.edu/> http://ncore.rsmas.miami.edu/ Phone: 305-421-4814 "Far better an approximate answer to the right question, which is often vague, than an exact answer to the wrong question, which can always be made precise." --John Tukey, Statistician, National Medal of Science and IEEE Medal of Honor From: MASON Multiagent Simulation Toolkit [mailto:[log in to unmask]] On Behalf Of Ali Nazemian Sent: Thursday, March 07, 2013 5:37 AM To: [log in to unmask] Subject: Simulating spreading the influence in social network Hi, I am looking for a tool to simulating the spread of influence and behaviors in social network, something like viral marketing. Would you please tell me that such a simulation is possible with using MASON? is there any sample project that could be help me in this case? Regards. -- A.Nazemian