It would be great to have a Drupal module that would allow you to put in a default Geo-location for your site, that was over-ridable on a node by node basis.
For those who don't know you need to put stuff like this in the head:
<M*TA name="geo.position"
content="45.9226;-64.3622">
<M*TA name="geo.region" content="CA-NB">
<M*TA name="geo.placename" content="Sackville">
<m*ta name="ICBM" content="45.9226, -64.3622">
<m*ta name="DC.title" content="tarlbot.ca">(Asterisks (*) in "meta" because "meta" was blocked as "suspicious content")
the geo.position, and ICBM both have the same data formatted a bit differently. Probably the DC.title should be the node name, not the site name if a position is input. In a perfect world the geo.region and or geo.placename would be hidden on a node where a custom position had been input but geo.region and or ge.placename were not added.