Thumboards is a location based mobile app, which helps you discover businesses, restaurants, entertainment, etc. nearby. Not only will it help you discover these things, but it will provide a way to call them directly, or even map a route to the location for you. When applicable, you can "grab" Thumboards, so that you can ultimately redeem them with an advertiser. If you find that a Thumboard is not really applicable based on what it initially advertised, you can always "burn" it.
You can also set up Profiles, which allow you to target specific Thumboards based on search terms you include in those profiles. This helps you to find Thumboards that are truly specific to your needs.
Thumboards also allows you to drop a review about a particular business, simplifying the decision down to a simple "thumbs up" or "thumbs down". In addition, you can drop your own free Thumboards for others to discover, wherever you are in the world.