It's pretty cool how much publicly available satellite imagery is available online these days. I've been able to use some images of military installations in the Kola Peninsula in my teaching, which is nice to give some sense of areas that are still off-limits to see first hand. It's mostly eye-candy, but Google Maps is a pretty interesting project, which stitches together satellite images by their geographic coordinates into a more-or-less seamless and scalable floating picture. Folks are already hard a work hacking the Google Maps XML data, so we should see some interesting applications soon. For now, I can just use it to check out my old neighbourhood in North Vancouver.