The European Commission organises a conference on Electronic invoicing in Europe on 27-28 April 2010 in Madrid. You can follow the conference via web stream: http://www.mityc.es/canalmityc/directo.aspx

The  conference programme can be found here: http://ec.europa.eu/enterprise/newsroom/cf/document.cfm?acti on=display&doc_id=5748&userservice_id=1&request.id=0