Includes bibliographical references and index.

"Although the shift from one-way to two-way mass communication - from broadcasting to social networking - represents a revolutionary restructuring, it does not necessarily mean the public is better informed, more culturally or politically polarized, or more engaged in public life. Practices, institutions, and norms are in mid-transition and potentially subject to our individual and collective choice. The book is designed to connect the best of recent scholarship with these pressing policy questions"--Provided by publisher.

The propaganda problem -- The prospect of precision -- The paradox of profusion -- Pondering polysemy -- Predisposed to polarization -- The politics of pluralism -- Public policy -- Praxis.

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