Google Earth
Google Earth is a computer program that renders a 3D representation of Earth based on satellite imagery. The program maps the Earth by superimposing satellite images, aerial photography, and GIS data onto a 3D globe, allowing users to see cities and landscapes from various angles.
SOURCE: https://en.wikipedia.org/wiki/Google_Earth
Google Earth
Google Earth is a geobrowser that accesses satellite and aerial imagery, ocean bathymetry, and other geographic data over the internet to represent the Earth as a three-dimensional globe. Geobrowsers are alternatively known as virtual globes or Earth browsers. Google also refers to Google Earth as a "geographic browser." Other examples of geobrowsers are NASA's World Wind, ESRI's ArcGIS Explorer, GeoFusions's GeoPlayer, and EarthBrowser by Lunar Software. Google Earth is available on the web for free as well for purchase in more advanced versions. While the free version offers numerous features that are useful in educational settings, the Pro version offers additional capabilities such as higher resolution printing and saving of images and the ability to open ESRI shapefiles. The free version of Google Earth as well as Pro are available through Google's Explore, Search, and Discover page linked below.
Google Earth Tutorial Site
Google Earth provides a free tutorial on how to use the product. Help Guides here are for both both basic and advanced users.
http://www.google.com/earth/learn/
Google Earth Showcase
From discovering shipwrecks on the ocean floor to zooming into 3D cities around the world, you can explore an expansive library of tours, videos, and imagery that have been created by Google Earth and supporting partners.
http://www.google.com/earth/explore/showcase/
Google Earth Flight Simulator Controls
Google Earth has an included game that enables you to control different airplanes in flight simulation. Controlling the plane is much harder than it looks. This site defines the keyboard control elements.