I've been meaning to put in my two cents about this site for a long time:
http://www.williammaloney.com/Aviati...tionindex.html
The owner of this site travels all over Canada and the Northern United States photographing military and aviation museums. The guy has visited around 40 museums so far, and there several thousand photographs in total. I've been to a few of the places he's photographed, and he certainly gives some good food for thought for future trips.