Originally published in 1898, Gabriel Tarde's essay "Opinion and Conversation" can be read as a series of propositions about the interaction of press, conversation, opinion and action, anticipating today's "deliberative democracy." Exploring these themes in a hyper-text "dialogue" with Tarde, Elihu Katz, Christopher Ali, and Joohan Kim ask what we know better or different 100 years later in this book. The aim is not only to reawaken attention to Tarde's text, but to assess the progress of ...