GeoURL: We Know Where You Live, Work and Blog!
hrbrmstr writes "GeoURL 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. Many potential 'location-based services' can spring from this if the database gets big enough. The site has an easy process for maintaining your entries. And can even generate RSS feeds for a given geographical area."
What you have linked is IP lookup tool. Not even close.
The article talks about a service which is comprised of user-submitted links where you might find bloggers near your community just by providing coordinates on the globe, and specify the threshold of the perimeter in miles.