The core reasons for online incivility are many. Several of the key themes have been tied together into an overarching thesis called the "digital hollows" (see right).
There are a number of books on civility, although not necessarily focused on online discourse. One worth recommending is "Choosing Civility" by P.M. Forni, a co-founder of the Johns Hopkins Civility Project.
Tim O'Reilly, a champion of "Web 2.0," once called for a "Blogger's Code of Conduct," but that call invited its own criticism, much of it uncivil.
Cyberbullying is a growing trend for America's youth. The U.S. Department of Health and Human Services has sponsored a "Stop Bullying Now" website full of resources.
Finally, one of our most civil Founding Fathers, George Washington, absorbed the wisdom of this guide to civility when he was in school.
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