I see this article on Google Maps API official BLOG. If i understand i can add to my sitemap a KML file available for viewing on Google Earth. Anyone can tell me how a can create a KML file with informations of my business?? thanks a lot
Doesn't the Google Maps API explain that? (Google maps <> Google sitemaps) Anyways, have you considered asking in Google webmaster user groups?
Sorry to drag up such an old thread I was recently looking into geo sitemaps and kml files and found <this> quite helpful. You can use google earth to generate your kml file quite easily.