Network simulations

Mathematica demos

Instructive, and fun to play with (btw, Mathematica is wonderful...but pricey)

Graphs

Preferential attachment networks

Giant component formation in random graph

Small world networks

http://demonstrations.wolfram.com/RandomAcyclicNetworks/

http://demonstrations.wolfram.com/MeasuresOfNetworkCentrality/

http://demonstrations.wolfram.com/FindingCliquesInNetworks/

http://demonstrations.wolfram.com/NearestNeighborNetworks/

http://demonstrations.wolfram.com/Random3DNearestNeighborNetworks/

http://demonstrations.wolfram.com/GiantComponentInRandomGraph/

http://demonstrations.wolfram.com/ConnectedComponents/

http://demonstrations.wolfram.com/MultidimensionalScaling/

http://demonstrations.wolfram.com/ShortestPathsAndTheMinimumSpanningTreeOnAGraphWithCartesianE/

http://demonstrations.wolfram.com/TheRoutingProblem/

http://demonstrations.wolfram.com/SmallWorldNetworks/

http://demonstrations.wolfram.com/FindBridgingEdgesInNetworks/

http://demonstrations.wolfram.com/BooleanNKNetworks/

Social nets

http://www.cmol.nbi.dk/models/infoflow/infoflow.html

http://demonstrations.wolfram.com/GenealogyGraphsFromXML/

http://demonstrations.wolfram.com/USPresidentialInterconnections/

http://demonstrations.wolfram.com/SocialNetworking/

http://demonstrations.wolfram.com/ShakespeareanNetworks/

http://demonstrations.wolfram.com/HowLongDoesItTakeASocietyToLearnANewTerm/

http://demonstrations.wolfram.com/EpidemicSpreadAndTransmissionNetworkDynamics/

http://demonstrations.wolfram.com/NetworksOfSpaceFlightsByAmericanPreShuttleAstronauts/