I got this little trick because I needed it myself for my sister website WeirdGlobeNews.com. To grab the latitude and longitude from the Google Maps center, do the following steps.
- Go to Google Maps, enter your search term (Such as "Amsterdam, The Netherlands") and press Enter.
- Now go to your address bar in your browser en copy the following code and press Enter
javascript:void(prompt('',gApplication.getMap().getCenter()));
- A JavaScript popup box will appear, showing the latitude and longitude of the center point of your map.
(52.373812, 4.890951)
- If you're using Firefox, you can turn this into an bookmark. Create a new bookmark and copy the JavaScript code in the Location. Now you can always get the coördinates with just the press of one button.