Folks here might like this extensive article about the founders behind 1000aircraftphotos.com and quite a few of the most interesting images from their collection.
http://www.vintagewings.ca/VintageNews/Stories/tabid/116/articleType/ArticleView/articleId/562/1000-Aircraft-Photos.aspx
http://www.vintagewings.ca/VintageNews/Stories/tabid/116/articleType/ArticleView/articleId/562/1000-Aircraft-Photos.aspx