As of a few days ago, Google Earth Pro is now free. Google Earth Pro is a mapping/virtual globe/geographical application and service which used to cost $399 per year, and is obviously the “pro” version of the popular and free Google Earth.
Google Earth is a popular (and useful) application for those conducting genealogy research. It can help you in situations where you can’t physically visit an area, say a farm or a house tied to an ancestor, and it can also help you plan genealogy-related trips.