I haven't had a chance to play with these yet, but they look very cool. Use your web browser to create a variety maps with tracks and waypoints from your GPS. There are also some tools to convert various types of files to different formats. The best part is that it uses your web browser so you don't have to download or instally any software and it works on both Macs and PC's. It's also free 
http://www.gpsvisualizer.com/
Check out some of the examples here: http://www.gpsvisualizer.com/examples/
This one is pretty interesting: http://www.gpsvisualizer.com/examples/google_photo_map.html
http://www.gpsvisualizer.com/Check out some of the examples here: http://www.gpsvisualizer.com/examples/
This one is pretty interesting: http://www.gpsvisualizer.com/examples/google_photo_map.html