Check out these three images of Lake Mendota Captured with the ETM+ sensor on-board Landsat 7: 30 m resolution; RGB mapped to Bands 4 (infarred), 3 (red), and 2 (green) 30 m resolution Bands 3 (red), 2 (green), and 1 (blue) 15 m panchromatic
Jon Chipman at ERSC has set up a catalog of satellite images acquiered by the new sensor on board Landsat 7. Check it out at this location
Visit the web page of the Upper Midwest Regional Earth Science Applications Center (RESAC). In particular, check out a new resource for Landsat satellite imagery at the Great Lakes Forest Information Center