Al-Jazeera and other satellite television stations have transformed Arab politics over the last decade. By shattering state control over information and giving a platform to long-stifled voices, these new Arab media have challenged the status quo by encouraging open debate about Iraq, Palestine, Islamism, Arab identity, and other vital political and social issues. These public arguments have redefined what it means to be Arab and reshaped the realm of political possibility. As Marc Lynch shows, the days of monolithic Arab opinion are over. How Arab governments and the United States engage this newly confident and influential public sphere will profoundly shape the future of the Arab world.