The future of smart cities has arrived, courtesy of citizens and their phones. To prove it, Daniel T. O’Brien explains the transformative insights gleaned from years researching Boston’s 311 reporting system, a sophisticated city management tool that has revolutionized how ordinary Bostonians use and maintain public spaces. Through its phone service, mobile app, website, and Twitter account, 311 catalogues complaints about potholes, broken street lights, graffiti, litter, vandalism, and other issues that are no one citizen’s responsibility but affect everyone’s quality of life. The Urban Commons offers a pioneering model of what modern digital data and technology can do for cities like Boston that seek both prosperous growth and sustainability.

Analyzing a rich trove of data, O’Brien discovers why certain neighborhoods embrace the idea of custodianship and willingly invest their time to monitor the city’s common environments and infrastructure. On the government’s side of the equation, he identifies best practices for implementing civic technologies that engage citizens, for deploying public services in collaborative ways, and for utilizing the data generated by these efforts.

Boston’s 311 system has narrowed the gap between residents and their communities, and between constituents and local leaders. The result, O’Brien shows, has been the creation of more effective policy and practices that reinvigorate the way citizens and city governments approach their mutual interests. By unpacking when, why, and how the 311 system has worked for Boston, The Urban Commons reveals the power and potential of this innovative system, and the lessons learned that other cities can adapt.

Across the country, white ethnics have fled cities for suburbs. But many have stayed in their old neighborhoods. When the busing crisis erupted in Boston in the 1970s, Catholics were in the forefront of resistance. Jews, 70,000 of whom had lived in Roxbury and Dorchester in the early 1950s, were invisible during the crisis. They were silent because they departed the city more quickly and more thoroughly than Boston's Catholics. Only scattered Jews remained in Dorchester and Roxbury by the mid-1970s.

In telling the story of why the Jews left and the Catholics stayed, Gerald Gamm places neighborhood institutions--churches, synagogues, community centers, schools--at its center. He challenges the long-held assumption that bankers and real estate agents were responsible for the rapid Jewish exodus. Rather, according to Gamm, basic institutional rules explain the strength of Catholic attachments to neighborhood and the weakness of Jewish attachments. Because they are rooted, territorially defined, and hierarchical, parishes have frustrated the urban exodus of Catholic families. And because their survival was predicated on their portability and autonomy, Jewish institutions exacerbated the Jewish exodus.

Gamm shows that the dramatic transformation of urban neighborhoods began not in the 1950s or 1960s, but in the 1920s. Not since Anthony Lukas's Common Ground has there been a book that so brilliantly explores not just Boston's dilemma but the roots of the American urban crisis.