Louisville stands as a poster child for city-county governance. Recently, a group of civic leaders in Ft. Wayne visited Louisville to attend the National Conference on Collaborative Government. Here is a commentary. Read more [1].
You can learn more about the conference here [2].
On a separate note, the James Irvine Foundation has released a report looking at regional collaborations in California. Most noteworthy to me, the report concludes:
Network structures [are] an emergent form of organization involving loosely linked autonomous players connected to one another in a variety of patterns. Information and social capital flow through these networks, and the participants share heuristics, feedback, and new needs and opportunities. They serve as a kind of distributed intelligence, and they can act in a self-organizing and adaptive way even without central guidance.
You can learn more about the report here [3]. You can download the report here [4].
Links:
[1] http://www.fortwayne.com/mld/newssentinel/news/editorial/13449325.htm
[2] http://www.usmayors.org/uscm/us_mayor_newspaper/documents/05_23_05/louisville1.asp
[3] http://www.regionalstewardship.org/ARS_enews/November2005/Article3.php
[4] http://www.irvine.org/assets/pdf/pubs/civic/insight_CRI.pdf