In making these various location based services, I'm always needing to figure the Latitude/Longitude for some geographic area. There area few on Google Maps, but you have to be signed on access Your Maps, etc. Just more friction that I need.
I've put online my utility to get the Lat/Lng for any place, using the Google Maps API.
Drag the marker around, and a bubble will appear showing the lat/lng at that point. You can zoom in using the mouse wheel, drag the map, and so on.
Latitude Longitude Utility