You can use the API from google. Here is an example with PHP.
You may also want to read up on KML
I'm familiar with the first reference, since I've done the API thing already.
Maybe I should be a bit clearer as to what I want to do in FM. I want to display a map, given an address.
Once the map is displayed, I want the map to be "live", so when I click on some point on the map,
a place mark is generated. I want FM to know about the place mark I just added, so, if I was to display
that map again in a different session, any additional place marks I added (there might be from 0-n of them),
will be dynamically added to the map.
Now, this is trivial in PHP. Can I do the same thing in FM?
Why not just use PHP to write back to FileMaker then?