I think you should only focus on defining Business Community governance at this point. This is because, typically, people use Clearspace groups for Social Communities, because they have membership. You'll see them also used as team workspaces. The people who join these groups tend to bring a pre-built level of trust with them for that group. Thus, less need for moderation and governance.
Also, keep in mind that the "report abuse" feature, and the fact that nobody can post anonymously, keeps folks from being stupid.
I'll post when I have more time re: Business Community governance good practice...
We are in the process of reworking the company policies to make sure we include the social media communities. While the focus is on defining the process around the business usage, social communities have already started popping up. We wanted to figure out how the process changes and to remind folks that they are still covered by the company policies.
In our company, we've made the assumption that our employees are (a) professionals and (b) they understand that when they are using Clearspace they are in a virtual version of the office, so all of the same expectations about conduct in the office apply here, too.
We let communities form wherever someone wants to create them. We push "governance" issues down to the local level as much as we can, while still coordinating all of the local communities at the enterprise level.
In our short history (six months or so) with our Clearspace implementation, we are rapidly growing in usage and adoption. My takeaway is that when it comes to governance, less is more
I agree. We have been up for around 5 months, have over 7400 members, and have not seen any issues. Unfortunately, even with polices in place, legal and HR are more about stopping than opening.