Earth Atlas is a prototype web application showing how KML files can be visualised directly in the web browser.

The Google Earth API and the Ext JS library are used to create a responsive user interface. Earth Atlas contains KML files from the Thematic Mapping Engine, a few KML SuperOverlays as alternate background maps, and KML files from external sources.
Other KML/KMZ files can be visualised by adding a link in the left panel, or directly in the Earth Atlas URL:
http://earthatlas.info/?kml=http://www.nature.com/nature/googleearth/avianflu1.kml
First release today - to be continued!
Comments
A suggestion: It would be nice if you could make some changes to allow those kml that contains unchecked network links or other unchecked components, to show up their structure so users could navigate them as in GE. Example:
http://bbs.keyhole.com/ubb/download.php?Number=979197
One suggestion though, this looks best under 1400X1050 resolution, but for presentations, usually at 1024X768, the two screen overlay legends for much of the data overlap with each other.
Are you planning to release this as GPL3, or are you sticking with the commercial ExtJS license?
Gerardo: I agree that this would be a nice feature.
Mano: I've now reduced the height of the title and source panels.
Jason: Not decided.
I'm new to the Plugin and Javascript and the ExtJS libraries look like something that could help me in visualising/navigating some quite complex KMLs I have with a bit more ease.
Thanks Bjørn - a real eye-opener!
best,
sean