Localfeeds.com: Cool of an idea as this is, I couldn’t find any Sioux Falls blogs.
Localfeeds is a new kind of wire service. Sources and headlines are discovered automatically, and organized geographically. What are people writing within 30 miles of you? within 50 miles of Toronto? within 20 miles of your favorite blog?
Closely related is the concept of a GeoURL:
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.