A location-based service ( LBS ) is a general term denoting software services which utilize geographic data and information to provide services or information to users. LBS can be used in a variety of contexts, such as health, indoor object search , entertainment, work, personal life, etc. Commonly used examples of location based services include navigation software, social networking services , location-based advertising , and tracking systems . LBS can also include mobile commerce when taking the form of coupons or advertising directed at customers based on their current location. They include personalized weather services and even location-based games.