Each version of Google Earth gets better and better! If you aren't familiar with this free application, Google Earth allows you to quickly fly to anywhere on earth as well as to locations in outer space. The latest version also lets users explore the oceans.
Whether you are exploring the Earth, rocketing off to outer spaces or diving into the oceans you will find rich media from world renowned scientific organizations. There is something for everyone to and easy to use. Google Earth is a great tool for learning about geography, astronomy, animals, fish, etc. Use the grid tool to explore longitude and latitude, or the ruler tool to measure the distance to school or to Disney World. In addition, view famous places in recreated 3D buildings and fly by the Eiffel Tower or the Taj Mahal.
Although this isn't a web-based program, Google Earth does update it's information by contacting the Google Earth servers. If you aren't ready to download the program try out Google Maps. You may be surprised to find that it even might have a street view of your school or your house!