Here's a pretty neat website. Check out this recent run I did with the Chaffee County Running Club (CCRC). I loaded the track points from my Garmin Forerunner 201 into Garmin MapSource. Then I exported to GPX and uploaded to www.mapmyrun.com and voila:
http://www.mapmyrun.com/run/united-states/co/salida/617525520
You can download Google Earth KML too.