Well, the name isn't very catchy (Zimbio?), but the tool might be useful.
Lewisham_Kate has used this tool to create a local "wikizine" bringing together articles and content from local bloggers in Lewisham.
Check it out at: http://www.zimbio.com/life+in+lewisham
If a few of us get actively involved (yes, another update each time you post!) it could be quite useful.