Metatags for Geographic Locations. GeoURL ICBM Address Server is a location-to-URL reverse directory. This will allow you to find URLs by their proximity to a given location. Find your neighbor’s blog, perhaps, or the web page of the restaurants near you.
For an example, check for sites near New York City and San Francisco. You can also get an RSS feed: see New York City RSS and San Francisco RSS (the RSS has an attached XSL stylesheet, so if your browser supports it, you will actually be able to see a reasonable rendering.)
Took me about 30 seconds to add myself to the database.