We love Google Earth! It’s great for learning geography. My son can sit and explore the world for hours. In fact, the whole family will find it fascinating whether you want to see your backyard, travel around your state, or fly around the globe. Where else can you inspect whole continents and then pinpoint exactly where you are in relation to it all! Seeing the world in this way really shows the interconnectedness of everything. Read my complete review (from 2005). Download Google Earth, it’s free! Here is a video from Google on how to use Google Earth (a quick but GREAT introduction to the software):
Some other tutorials that you may find helpful:
Google Earth Basics – from the Google Earth Blog.
Google Earth Blog – some good info, neat examples of stuff you can see on Google Earth.