I wanted to comment further on adoption. I concur with Reid that it does not work to plan out how these spaces will be organized. Better to let it evolve organically. But there is a cultural hurdle that needs to be overcome when bringing new users to the tool.

I advise my users to jump in and start swimming. One can learn more in five minutes of use than in an hour of conversation. The hardest part is to get people to stop using email and start using the space to communicate. When that does happen, however, projects start running smoother and communication is more meaningful and focused.

I’ve started a public Near-Time space for users and space owners. Here is the link if you are interested in seeing some of the issues associated with using the tool:

http://guide-space.near-time.net/news