Google Earth uses imagery from Public Laboratory archive
2012-04-19 17:46:56.016676+02 by Dan Lyke 0 comments
Google Earth publishes community created maps from the Public Lab archive, those maps involve kite and balloon based amateur aerial photography.
The Public Laboratory looks like an outgrowth of The Grassroots Mapping project, which I believe is part of Jeff Warren's efforts. Jeff has been mentioned on Flutterby before: here and here