Data Driven Detroit is the local Data intermediary for Detroit, Michigan. They have a variety of tools available for use by community members, non-profits, and developers to in order to provide accessible, high-quality information and analysis to drive informed decision-making. Mapping tools available include a neighborhood typology index, an economic opportunity index. Displacement index, and parcel by parcel overall demographic information about the city residents and business uses. D3 is a great example for data intermediaries in other cities.