I know I am late to the party on this one, but Google Earth is really cool. I have an upcoming photo shoot for the Trust for Public Land (http://www.tpl.org/) in Northern California, and needed to get instructions for specific locations on the property where photographs were needed. The client was able to email me a snapshot from Google Earth and pinpoint locations on the property where I should go. Google Earth is available as a download from http://earth.google.com/download-earth.html. Once you install the software you have access to aerial photos from the entire planet. You can then save specific snapshots of an area and email them. Here is a Google Earth file that shows the location of our gallery in Truckee. If you pan to the west you can see the wild country of the high Sierra, and to the south you can see Lake Tahoe.