Another wonderful function of Google Earth is the ability to import high-resolution images to overlay on your terrain, or import models created from other sources (ie a Golden Gate Bridge model for San Francisco)
Hacking Google Maps and Google Earth
DOWNLOAD: rapidshare.com This one-of-a-kind resource contains 500 pages of jaw-dropping hacks, mods, and customizations. These include creating mashups with data from other sources such as Flickr, building a space station tracker, hacking Maps with Firefox PiggyBank, and building a complete community site with Maps and Earth. Now you can map out locations, get driving directions, zoom into any point on the globe, display real time traffic, and much more