The Times Online published an article on Younes TSOULI aka "Irhabi 007", convicted in a U.K. court for "incitement to commit an act of terrorism through the internet."
"What makes Irhabi 007’s case so chilling is the evolution from simply setting up websites to becoming involved in terrorism itself. Increasingly he pined to go to Iraq to fight, and increasingly he became involved with others who were planning attacks. Two men who chatted with Tsouli online travelled from Atlanta, Georgia, to Canada to meet a group of extremists whom they knew from Tsouli’s forums, and then to Washington, where they took what are alleged to be reconnaissance videos of targets such as Capitol Hill. These videos were later found on Tsouli’s computer."
The article also discusses how the use of technology can be a two way street: It assists computer criminals but can also be used by investigators to track suspects and collect evidence:
"The power of the internet is its ability to put like-minded people in touch from every corner of the world. But the benefits for terrorists can also be an advantage for detectives when they catch a suspect, because they can quickly trace the people with whom the suspect was in contact.
“Once you get on to one guy who’s important in a network, because the structure of a network is flat . . . you get everyone he’s connected to,” Aaron Weisburd explains. “In the old days a terrorist organisation would have a much more hierarchical structure, you would have tight little cells and one guy would know maybe one person one step up and maybe one person one step down, but that’s it. In a network structure, if you get the right guy the whole thing goes down.”