Global Imagery Site
Use your mouse to pan and zoom to any place on earth. The underlying image data are from Google and Terraserver, so some areas are just 30-meter satellite imagery but many others are 1-meter
PEW Charitable Trust
Maps, resources, mining in the Boreal
Tailings
Technical information, assistance
USGS Terraserver
Online database of aerial photos and maps from the U.S. Geologic Survey