Republic.com 2.0

What happens to democracy and free speech if people use the Internet to create echo chambers--to listen and speak only to the like-minded? What is the democratic benefit of the Internet's unlimited choices if citizens narrowly limit the they receive, creating ever-smaller niches and fragmenting the shared public conversation on which democracy depends? Cass Sunstein first asked these questions before 9/11, in Republic.com, and they have become even more urgent in the years since. Now, in Republic.com 2.0, Sunstein thoroughly rethinks the critical relationship between democracy and the Internet in a world where partisan Web logs have emerged as a significant force in politics and where cyber-jihadists have…