Google added a new feature “geotagging” to the new post editor on Blogger in draft that lets you add a location to each of your blog posts. Just as time stamps help readers find posts from a certain date or time, geotags give your readers a way to browse posts near a specific location.
When you use Blogger in draft, open the post editor, and click the add location link below the main text field. Use the location editor to search, drag, click and zoom on a map to choose and save a location. Google will then try to label the location you choose using our reverse geocoder, which looks up a name for a point on the map. You can also edit the location name by clicking the blue location name text below the search field.
When you publish your post, the geotag is displayed below your blog post as a link, which will open up Google Maps. The location will also be included in your blog's RSS and Atom feeds using GeoRSS.