I have been using Google Earth for a while now and some of the features are great. The only problem that i have seen with Google Earth is the images are not in real time, but that is where the Google Earth community come in, the members there are constantly looking over Google earth and posting overlays to keep things upto date.

One good and recent example i found on GoogleBlog is the change in New Orleans.
New Orleans Superdome before
New Orleans Super bowl - before Katrina

New Orleans Superdome after
New Orleans Super bowl - after Katrina

I will be posting more overlays in the future.

Download Google Earth Download Katrina Overlays

Originally posted at GoogleBlog