I logged in to write essentially the same thing. Google+ has a lot of features to solve multi-class problems. An interesting thing would be web-based tools that

I logged in to write essentially the same thing. Google+ has a lot of features to solve multi-class problems. An interesting thing would be web-based tools that Google could develop and release for different circles such that people could administer and run those circles on different parameters. I guess, the Google+ platform could enable apps that would do this. For e.g., creating a Lore-like app, that would allow you to create a blackboard for your circle, and a family-center app for your family, and such.