it12
gave this add-on stars.
Review:
It does what it says it does and more, you can map custom fields for your address and map field indicator around which all of your pins will be shown.
You can choose custom fields for filtering your search and for creating list view as well.
It works like charm with API key, if you have standard key it will only process 2500 records with Google, for more you have to enable billing or get premium package from Google.
Great add-on, currently set to work with Contacts, Leads, Accounts.