The Future of Communities Web site posted this brief article by Francois Gossieaux. I recommend you download and read the PDF.
Partick Duparcq, professor at the Kellogg School of Management at NorthWestern University was kind enough to share one of his research papers on community design with the audience of this blog (download PDF here – 90K).
The four principles of community management according to Duparck are:
Most people and sources I know would agree on using “moderator/moderating” over “policing”.