Ok, you guys are WPMU experts so this is the perfect place to ask:
I would like to create the following type of network.
I have two communities, let's call them Donkey Community and Elephant Community. They are both part of the Animal Community.
Each community has their own mission and vision and their own brand (look and feel). They each want to have their own articles and events.
However, the Animal Community has members from all communities and also members of Animal community that are not necessarily part of the other communities.
If a user becomes a member of Donkey, they automatically become a member of the Animal Community (but not necessarily of the Elephant community, however, in the future, they can easily become users with the click of a button?)
The Animal Community showcases events, articles, and members from the various communities it houses.
Is this possible? If so, how can I go about this?