In 2014, Kaxa Q&A releases its whole new map version, “the knowledge mile.” This app allows learners to ask questions about math, chemistry, physics, biology and earth sciences by taking photos via smart phones or tablets. Every question will be marked as a fire on the map. Online knowledge PROs can help to extinguish the fire by giving hints or solutions. Those who successfully answer the questions can accumulate “knowledge miles” in their online accounts as rewards. The mileage can be exchanged to commodities or services in the social enterprises who are willing to support the knowledge PROs.