Just discovered this thread. I have been seeing Old School Houses for a while and jsut in the last few weeks started taking pics of them. (I have them o nfacebook as it's so easy to take the picture from my Blackberry and then post it. I also have been creating a map of old school houses I have seen or know about. The map is on Google Maps:
It's a work in progress and as i find more I'll put them on the map.