Good news everyone! Two weeks ago the Google Earth team announced on the Google Lat-Long blog that Google Earth Pro, which was formerly $399 dollars a year, would now be free for everyone!
Google Earth Pro has several additional features over the normal Google Earth software. Pro users have access to additional measurement tools that can be used to measure things like the area of a parking lot or land development. Under a pro license, users can also take high resolution screenshots of up to 4,800 x 3,200 pixels, a useful tool especially if you plan on making anything creative with Google Earth.