Had a strange one today, which goes to show how far the message about UKMap has reached.
A call from a Security Team leader of a major utility company who wanted to know what we were doing about publishing the details of their secure locations. They were concerned that as a commercial company we would publish maps that might help those who would seek to do harm to our critical national infrastructure.
We create our mapping from publicly available imagery (Cities Revealed), containing detail similar to that you will see on Google Earth or Microsoft VE; our content comes from field workers who record what they see by walking on public land. So if it is public we record it.
So to all those who think we know something of secrets sites - we don't. Please feel free to license some UKMap to check it out for yourself though!