摘要:This paper reports on the deployment of a multilingual Social Networking Platform in three Regions of Europe (Catalonia, Poitou-Charentes and Tuscany), in the context of an EU-funded Preparatory Action on eParticipation dealing with the issue of climate change and energy policy making at the level of the European Parliament. The US (“Obama”) approach and a novel (“European”) usage of social networks in political online discourses are compared. A recommendation to policy makers is that social networking can be useful whenever the topics under discussion are limited in scope, but also wide in implications, so that they require moving forward from “one-off” and “ad-hoc” participation experiments, towards the permanent coverage of “mission critical” Public Administration functions.