graphGEAR is a toolkit for graph extraction, analysis, and simulation of dynamic processes such as information spread or gossip algorithms. See the example code in graphGEAR.java to get started. The sample data contains 100 matches from the online game DotaLicious, see R. van de Bovenkamp, S. Shen, A. Iosup, and F.A. Kuipers, 2013, Understanding and Recommending Play Relationships in Online Social Gaming, Proc. of the 5th International Conference on COMmunication Systems and NETworkS (COMSNETS 2013), Bangalore, India, January 7-10. for more details.