Not your typical distance education-related posting, except you might want to know where your students are - yeah, that's the connection! ;-)
A little dialog box will pop up displaying the coordinates which can be copied and pasted for use elsewhere. This code can be bookmarked and then used in the future by selecting the bookmark.
But you know there's no dang way anyone's going to remember that, so why not make it a bookmarklet? After I whipped one up, then I checked to see if it had already been done, and found this version, but it doesn't allow you to easily copy the coordinates to another application, so I think mine's better. :-)
Drag this to your bookmarks toolbar in Firefox, then find a location in Google Maps, hit the bookmarklet, and voila! There's your latitude and longitude ready for copying into any application.
GMaps Lat/Long <-- Bookmarklet
Anyone want to test/modify for other browsers?