Shopkick, the location-based startup which helps shoppers by simply having them walk into stores, is announcing their results for the previous year. Shopkick is announcing that it reached $110 million in revenue for retail and brand partners in 2011. The company continues to grow, with 11 national retailers, dozens of brands, and 3 million active users. While it doesn’t define what an active user is, for the company to help partners reach $110  million in revenue signals high engagement.