International Centre for the Study of Radicalisation and Political Violence's new report challenges the conventional wisdom on internet radicalization.
Tim has full coverage of its release.
This CNet article gives you an idea of the report's primary thesis:
It also found that "much of the jihadist Web presence was about 'preaching to the choir'" and that "it is largely ineffective when it comes to drawing in new recruits."
After examining a variety of ways to block, filter, or remove offensive sites, the report found that "many of the filtering technologies that are currently in use are either too crude or too expensive to operate" and that they fail to deal with the conversational part of the Internet." Even though it may be possible to "remove, filter or hide content that is available from relatively static Web sites," such efforts will be largely ineffective when it comes to "chat rooms, instant messaging, virtual worlds and networking sites." Like the rest of us, it seems as if terrorists have discovered Web 2.0.