Have you ever gotten directions where to meet for dinner or a location of a friend’s new apartment? To find out where these places actually are, you used to have to open up Google Maps and paste in the address. Today, Google is making it easier. If you receive directions in Gmail or Google Buzz, Google will show you a live preview of the location in Google Maps.
Enable “Google Maps previews in mail” from the Gmail Labs tab under Settings, and any time you receive an address or a Google Maps link in an email, a preview will appear containing the interactive Google Map of that location. Any Google Maps URL will work, but for now this service is only available in the US.