Hey, I've gotten a glimpse of a paper from Mark Drapeau of the National Defense University. Their mission is to help out top defense, diplomacy, and development decision makers (Principal Dep Assistant Secretary, Rear Admiral, Ambassador (or equivalent.)
The deal is that a lot of decision makers everywhere need help understanding social media/networking, and need that help fast.
They outline an overall framework for understanding how social software fits into government. The four 'pillars' are inward, outward, inbound, and outbound.
Inward is about sharing with relatively known persons in your group/department/org (think Yammer), outward is sharing with known persons outside your org (eg, fed gov with state gov, local first responders, and a mayor's office), inbound is accepting lots of info from unknown persons outside your org (think Open for Questions or DARPA Grand Challenge), outbound is pushing info to lots of persons outside your org (think public affairs, public diplomacy, etc)
Me, I'm very interested in the public diplomacy thing, and observe this is applicable to all organizations, public and private.
The "culture" of big hierarchies impede progress in social media, but I'd say there's a lot of bottom-up pressure to address this. It's often from the younger workers. (I guess they have the energy.)
There's lots more in the paper, I'll publish when available.