I was just checking to see if there was an update to Google Earth and noticed on this page that Google Earth Pro is now free! The Pro version allows you to Print high-resolution images, make movies, Compute distances and areas using measurement tools & more. It used to be $399USD /year so this is pretty awesome. To note, when you launch the app for the first time you’ll see a registration page, just use your email address and the key GEPFREE to sign in.
Zane Egginton's Blog