Fotocade’s Archi-maps contains KML files for several places in the UK highlighting interesting architectural landmarks. Many of the placemarks are annotated by photos by Andy Marshall, an architectural photographer. If you like them, you can buy them. It’s an interesting new way to sell stock photography — by georeferenced location.
Not to be outdone, Brian Flood is putting the finishing touches on Arc2Earth before its official 1.0 release. Arc2Earth turns output made by pros with ESRI ArcGIS into KML, so that the rest of us can consume it with Google Earth.