The spread of that information has already extended to Google competitor Microsoft Virtual Earth, which has started to include KML files in Live Search Maps.

Google Earth users can now search publicly available Keyhole Markup Language (KML) data files, also known as map layers.

But, Google has been gradually releasing more support, so hopefully these limitations will get fixed in the future. Google Earth itself is probably the easiest application to create many KML files.

KML, which is the language used to describe layers and placemarks in Google Earth, is not an especially difficult language (it's just XML really) but it can be tedious to create and maintain.

Google's installable maps software Google Earth makes KML overlay files that add points of interest, descriptions and photos to your earth, and now you can view those KML files live on the web at ...