Location-based marketing uses location data to provide relevant ads and offers to consumers. It has evolved from early proximity-based models driven by technology to new approaches driven by consumer apps and social networks. Current approaches emphasize relevance, relationships, engagement and incentives to check in at locations. The value is moving beyond just location to tagging various objects and content to drive highly relevant ads. Privacy and ensuring benefits for both businesses and users will be important as location-based services continue to grow.