Last summer we told you about Data Appeal, a company that helps you easily visualize your data using Google Earth. It was a nice product back then, but some recent updates have made it even better.
They now support a few new features such as color gradients…

and the ability to layer multiple maps:

You can also check out this video to see a visualization they created from a dataset of earthquakes around the world:
The features are all still free of charge since they’re in beta, but eventually there will be some kind of cost associated with them. For more, check out their website at DataAppeal.com.
About Mickey Mellen
Mickey has been using Google Earth since it was released in 2005, and has created a variety of geo-related sites including Google Earth Hacks. He runs a web design firm in Marietta, GA, where he lives with his wife and two kids.