To be honest, getting the link isn't really all that hard difficult,
just bookmark the link to google maps and everytime you wish to find a
link just search for it. If the location comes up, click link to the
page, copy it, and your done.
I had to submit around 170 different markers to a single google maps
page (and still counting), I actually created a PHP script so I could
easily add, edit, and delete the information for the makers. Even with
all of that I still just simply had an input field on the submit form
where I entered the link just like said above.
Personally I think GMap's makes it much easier for you to do it this
way then having to give the actual geographical coordinates.
If you really wanted which would probably be lots of work you could
create a form with input fields such as city, state, zip, and name.
And If you are using php using the post method echo a generated link
which would out put all of the main static google code for linking to
apartments, and then add the variables into it.
and make the script output something along the lines of this format
(only showing zip code)
<a href="
http://maps.google.com/maps?f=q&hl=en&geocode=&q=<?php echo
$zip; ?>"></a>
Don't know if any of this will help you, but good luck.