If you check-in using Google Latitude you can now find great offers throughout the U.S..
If you use Google Latitude to check-in to venues you improve your 'status' at that location. If you improve your status at some venues you may find your loyalty is rewarded with check-in offers. From discounts to a free snack, check-in offers reward you for your custom.
Google Latitude has three status levels, Regular, VIP, and Guru. Venues however can also create their own status levels that they can reward visitors for achieving, with offers on Google Latitude.
Via: Google LatLong