Al-Uyayri explains that jihadists are "multitype combat businessmen" who, as terrorist boy scouts, must be prepared for anything. "He must not be like a soldier in a regular army who operates in conjunction with others in terms of equipment and combat. He must view himself as the commander, the navigator, the shooter and the communications or reconnaissance man ... he must equip himself with everything that he needs and train on all combat tasks and appropriate weapons."

Al-Uyayri goes on to prescribe exactly the kind of urban warfare that's proved so tough to fight in Iraq: "The target should be easy and simple, and the security around it should be weak. The combat action against the target should be quick and not be based on a complex plan ..." The jihadists should be "like gas or air; present but not seen." The tactics lauded are the stuff of daily nightmares in Iraq: suicide attacks, sniping, booby traps, improvised explosive devices, poisonings, kidnappings, and assassinations.

Al-Uyayri's writings are but one of scores of training manuals for jihadists now out on the Internet. What strikes analyst Marquardt is the ease with which terrorist groups can now obtain this kind of information–and the staying power of once obscure strategists like al-Uyayri. Hundreds of online forums and websites now act as classrooms and virtual training camps for aspiring jihadists–anywhere in the world. They're helping to guarantee that fanatics like Terrorist 11 and his budding jihadist will be with us for years to come.

There's no shortage of info on jihadists online. This week the Senate Committee on Homeland Security and Governmental Affairs holds a hearing on "The Internet: A Portal to Violent Extremism," coinciding with the release of a George Washington University study on "Internet-Facilitated Radicalization." Also worth checking out: the work of Rita Katz and her SITE Institute.