This is so nice to have as a resource. My friends and I have been playing around with google earth for quite some time now. We never knew about the Dynamic Overlays until my friend from The University of Oklahoma showed me the weather overlay his friend from school came up with. I did a little more exploring and found this WONDERFUL Gem. I am an avid Geocacher and this little tool has helped me tremendously. if I cant find a Cache I check it on google earth now to see if my GPS was a bit screwy. Now i have a visual represenation on where this little treasure is. Thanks Andy for all your hard work