From the author of Blackberry hacks – “Running Logs for Google Maps is a software package that lets you automatically upload your runs from a GPS watch (like the Garmin Forerunner 201 or 301) to your web site to be displayed in a nifty Google Map. The map will show an animated view of your runs showing mile markers, pace per mile, and distance travelled. It also creates a KML file for viewing in Google Earth.” Thanks Brian! Link. Here’s an example, it’s better than most of the commercial running / mapping applications and sites I’ve used.