As Meatball has been serving as a platform of community activists and leaders of different communities. Barnraising applies to all of them. On MeatballMission Sunir made the BarnRaising its central paradigm, which became a kind of hallmark of Meatball in the wider community. As the different barns are distributed all over the globe, I think "same place", "same time" doesn't appropriatly describe the on-line reality, how virtual barns are built, assynchronous collaboration should be integrated. Beyond that I think we should not exclude IncidentalCollaboration or also spontaneous collaboration with a formulation community actively decides, because this could suppress a lot of useful group projects on a smaller scale by bureaucracy.
There was one difference in the two versions of the BarnRaising document:
< The goal may be ... such as a new school or public accessable tool, that help to raise the knowledge, creativity, productivity and friendlyness of humanity.
> The goal may be ... such as a new school or public tool (that both help to raise the knowledge and friendlyness of humanity).
In response to "Churches have something we don't, yet": I think the "something" is passion.
An interesting example of (Community or Enterprise) Building... http://www.siliconvalley.com/news/ci_13825531