Over on the Keyhole Community bulletin board (Keyhole is what Google Earth was called before Google bought it and made it free), somebody has converted GPS data of live locations of public transport buses in Boulder, Colorado, and turned them into a KML file that updates in real time. Great proof of concept.
Got some coordinates you’d like to place on Google Earth? Here’s a KML Generator. Very easy. Very cool.
For reference’s sake, full documentation of KML 2.0, Google’s XML for placing things on their Earth.
Good to see Google Maps has now gotten the same detailed satellite imagery as Google Earth outside of the US. (That wasn’t the case when last I checked a few weeks ago).
As evidence, the route of the 2005 San Fermin running of the bulls, day by day, complete with markers for where the injuries are.
If you do real estate, the question becomes why aren’t you publishing a KML file with your listings? Here is an example from Chicago.