***** To join INSNA, visit http://www.insna.org ***** > Do they have any attribute/membership/event info on the egos/alters? This can be used to perform a two-mode analysis of possible ties. In this case, one can use the attribute information to compute their position the in vector space (e.g., cosine values) and project distances in that space as a network on the geographical distances. See also at http://www.leydesdorff.net/gmaps . With best wishes, Loet _____________________________________________________________________ SOCNET is a service of INSNA, the professional association for social network researchers (http://www.insna.org). To unsubscribe, send an email message to [log in to unmask] containing the line UNSUBSCRIBE SOCNET in the body of the message.