MiRealSource is the largest broker-owned multi-listing service serving all of southeastern Michigan. In 2008, MiRealSource joined with other Michigan multi-listing services from nine counties to establish “The Great Lakes Repository,” which joins, in one single location, a statewide repository of all MLS shared data. By sharing the MLS information, it reduces costs, saves time, generates better data, increases competition, and standardizes and secures the material while maintaining autonomy. Eventually, the Repository expects to collect and make available all MLS data from throughout the state