Most of us have contacts in our Mac Address Book with the home address or business address of the contact filled out.

If you want to get an instant map to any address this is what you do.

Open up your Address Book

Find the contact that you want to google a map to (the contact you choose must have the address field filled out

Right click on the Address Field and select "Map Of"

The address will be instantly shown in Google Maps on Safari

Also if you have an address that is contained in an email the same thing applies