Greetings to all,
I am a new member that has been lurking here for a while. I found a map layer to add to Google Maps that links not only to USGS maps, but also the Army Map Service collection at the Perry-Castaeda Library at Univ of TX. These maps cover a LARGE portion of the world in good detail. The only caveat is that they are fairly old maps, from the 40s, 50s & 60s... Still good stuff though...
http://bbs.keyhole.com/ubb/ubbthread...te_id=1#import
Cheers,
Chris