Do you often receive an email that mentions the address of a place within the text? Sometimes we aren’t really sure where the place is, and have to copy the address into Google Maps to find out where it is. Google’s latest “Google Maps previews in mail” Lab experiment should go some way to help you solve that issue. With it enabled, whenever you receive a US address in your email, a preview will appear, offering you an interactive Google Map of the location, allowing you to instantly figure out where the location that the email is talking about is. Seems like a pretty useful feature, and one that you can be sure many folks would appreciate.