In their introduction to Digital History , Cohen and Rosenzweig present the changes in how history is both produced and consumed in the wake of the digital revolution. They see both positive and negative consequences to this dramatic shift in access , as more people have more access to the historical record and the scholarship that interprets that data. They raise many questions , both ethical and practical, and their book offers historians a guide to navigating the new technology that will help them capitalize on the b enefits while avoiding its liabilities. In “It’s a Wonderful Block,” Mark Oppenheimer offers readers a chance to zoom in to a particular place, a single block of West Rock Avenue, New Haven. Seeing the neighborhood through his eyes, he gi ves an interesting, detailed account of his block as an organism, and what he thinks are the dynamics that make it a great place to live. He places these dynamics within the context of trends in urban planning. At f