More tools for geotagging and geocoding as well as a GeoRSS validator:
Geo-Tagging:
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Geotag your blog, site or feed | Address Fix
Geotag your site, your blog, your RSS Feed or generate your KML. Geotagging is a growing method of finding and relating sites on the web geographically. Or… you can simply use this form to identify your cleaned up mailing address, lat, and long
GeoRSS: