PUBLIC MARKS from nhoizey with tags kml & "google earth"

TrailRunner is a route planning software for all kinds of long distance sports like running, biking, hiking, inline-skating, skiing and more. If you ever asked yourself how long your workout routes are and what route you should choose for this evening — then TrailRunner should be your training-partner.

A set of Automator Actions to download, upload and convert GPS routes, waypoints and tracks.

LoadMyTracks is a piece of software that will communicate with GPS devices from many manufacturers to send and receive data. It can also be used to translate data between the popular GPX and KML (Google Earth) formats. The software provides support for Waypoints (single locations in space), Routes (lists of waypoints that can be used as instructions of where to go, Tracks (the breadcrumbs that many GPS devices keep to show where you have been) and additional data that may vary by device.

GPS Automator Actions by Austria's Sigurd Buchberger lets you use Mac OS X's built-in scripting tool to download data from connected GPS devices, convert that to KML and many other formats, and also upload to GPS devices.