Here is a message from David Holmgren, Co-originator of the Permaculture concept: some recommended reading with relevance to our community:
Envisioning sustainable communities (parts 1 and 2)
This is very good at clarifying the difference and relationship between communities, movements and pressure groups.
The importance of envisioning 'community' (part 3)
by Gary Clausheide
This is a good summary of the ancient history of community from a European perspective and will be very useful as we attempt to grapple with recreating communities.