Interesting article on how terrorist organizations use the internet. Snippet:

....In a briefing given in late September 2001, Ronald Dick, assistant director of the FBI and head of the United States National Infrastructure Protection Center (NIPC), told reporters that the hijackers of 9/11 had used the Internet, and "used it well." Since 9/11, terrorists have only sharpened their Internet skills and increased their web presence. Today, terrorists of very different ideological persuasions—Islamist, Marxist, nationalist, separatist, racist—have learned many of the same lessons about how to make the most of the Internet. The great virtues of the Internet—ease of access, lack of regulation, vast potential audiences, fast flow of information, and so forth—have been turned to the advantage of groups committed to terrorizing societies to achieve their goals....