Tom, Paul, thanks for having a look into these suggestions from Carlos: http://www.eui.eu/Personal/fvega/Articulos-Propios/Annales-08.pdf ; http://www.eui.eu/Personal/fvega/Articulos-Propios/JEDC2006.pdf blog commentary would be very welcome, Michel -- P2P Foundation: http://p2pfoundation.net - http://blog.p2pfoundation.net Connect: http://p2pfoundation.ning.com; Discuss: http://lists.ourproject.org/cgi-bin/mailman/listinfo/p2p-foundation Updates: http://del.icio.us/mbauwens; http://friendfeed.com/mbauwens; http://twitter.com/mbauwens; http://www.facebook.com/mbauwens