A very nice application of social network analysis " When information about an underlying social network is available, seeding on the basis of this information, as typically captured by sociometric data, seems promising (Van den Bulte 2010). Such a strategy can distinguish three types of people: "hubs," who are well-connected people with a high number of connections to others; "fringes," who are poorly connected; and "bridges," who connect two oth- erwise unconnected parts of the network.