Earth View from Google Maps is a neat Chrome extension that I recently learned about on the Google Earth Blog. Earth View from Google Maps displays a new satellite image of the Earth every time you open a new tab in Chrome.
Applications for Education
Installing Earth View from Google Maps on the computers your students use could be a neat way to introduce them to different parts of the world. In a geography lesson the interesting satellite images that pop-up could be the prompts that you have students use to start a small investigation into a new-to-them place in the world.