Relating to the map that Stealth posted. Instead of the red blobs, couldn't we just have those 12 areas and then when you put the mouse curser over that area it highlights the members in that area. Very vague I know, but it would help those out in that area. Could probabbly chop it into a few more areas - Eire and Wales for example, or down to counties.
Just a thought, because then it would be easy-ish to put it into a dropdown section somewhere on the forum and have the map contained in its own embedded page