I am trying to catalogue examples of Gov20 approaches for joined up government (managing programmes across organisational silos). Clearly sharepoint is not making the trick.

Can you help me listing examples?

– intellipedia from 14 US intelligence agencies to one single collaboration space (maybe one step too far, very specialistic)

– enterprise 2.0 solutions like blogs, social bookmarking (not very impactful in my view)

I am particularly interested in tag-based solution that allow many-to-many unpredictable collaboration/networks to emerge. Also would be nice to have application of social network analysis.

As usual, this is more a working note to myself, but ideas are welcome. I am using the delicious tag joinedup20, in case you want to help.