Hi Harold, Interesting, thanks for sharing that. I think it is interesting to distinguish different types of structures within an organization, but only for intellectual purposes, operationnaly, I think they blur. I would also argue about the names (formal, informal, value creation): the informal structure should become "formal" in the next few years (months ?) through intelligent adoption of social technology. In any case thanks, contributes to clarifying things for me, and mainly that social business success needs a higher level of governance that companies usually have Luis