Groups don't exist in a vacuum. Most groups concentrate on their focus but also have some connections with other groups.

• cascading groups

  contact improvisors, like many activity-based communities, practice most frequent at local events - typically, the weekly jam session. larger scale events happen more occasionally for attendance by people in the region - regional jams and workshops/intensives. even more occasionally there are larger scale events for participants spanning region.

  in this way, groups with local jams within a region constitute the constituent elements of larger, region-spanning groups.

  also, there are cross-cutting subgroups, like jam organizers, who could benefit from having conduits for sharing tips and other information with other organizers.

• committees

  committees need to communicate with one another, but eventually they need to report back to the governing body (and/or public) on the specific issues they were appointed to resolve. they may need to coordinate with other committees and other deliberating bodies. etc.

• project developers - issues don't just belong or related to one project.

• special-interest groups