The Twin Cities Daily Planet recently ran a nice article on the community blogs in Northfield. Northfield has two big blogs LocallyGrownNorthfield.org and Northfield.org, and lots of smaller blogs. Locally Grown highlights those local blogs.
I have known some of the folks in Northfield for a few years. I think they started years ago in a very smart way – the built a web site that worked very specifically with local TV and newspapers to host real-world and virtual events. I think this started 10 or more years ago.
The article does a nice job of talking about how and why it works.