I'd bookmarked the WorldWind site, but not the two mentioned in the post above it. However, the topic of terrains and maps and satellite images will come up again... or I can go delving through sites if I need a particular environment... and will probably stumble over other interesting bits. It is nice to be able to share them, though, so I hope that there will be a restructuring for things which are not really off-topic to artists. Carolly