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There are a few pages that I've recently visited and I think there is some good thinking going on. Remember that when you get too many widgets on the page it can get overwhelming. Setting up a page often becomes a battle between getting the right widgets on the page and becoming too cluttered to be usable.
Take a look around these for general overview pages:
Penn Foster - Group page (Dive deeper for nested groups)
Some of these communities have transformed since their launch, and they will certainly change since this post. Good Luck.