On my list of SuperNeatToolsToLearnNEXT is Google Earth--it is with chagrin that I admit that my experience is shallow with this amazing tool (for now). But I am changing that, and I want to point out a great resource that demonstrates how to use GE in the content area of Language Arts.
Google Lit Trips is a fun idea . . . interactive webquests with beefy features.
Here's a good .kmz file that I will show the teachers at my school in August: My Brother Sam is Dead.
Download the KMZ file, then open Google Earth and select File | Open and choose that downloaded file to open. I'd turn off many of the default layers and labels so that the data for My Brother Sam is Dead is nice and visible. Fun stuff.