Determining meatspace on the information superhighway

Dreadful similes aside, Make magazine's blog points out a really cool website today: GeoURL.org, a site which will generate a specific longitude/latitude point for a location (like your business, or your apartment if you do a personal blog), then let you run this data at your site as a meta tag, so that their website can read it and plot you on a worldwide map. The entry at "Make" details how to do this for your own site, including active links to each step; once you've finished registering, like I recently did with this site, you can then see on one page all the other people/companies/blogs in your neighborhood who have also registered. Pretty cool little feature, I have to admit, and all for free.