***** To join INSNA, visit http://www.insna.org ***** Dear Chris, Some time ago we perfomed an analysis of the e-mail network of a Spanish university with emphasis on the informal structure. This analysis permits determination of hierarchies within the email network purely from topological information. The details of this study can be found on our website http://complex.ffn.ub.es/socnet.html Hope that helps, Leon _____________________________________________________________________ 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.