Thanks to MEMRI for this great information:
On August 26, Islamist websites posted an item titled "How to Join Al-Qaeda." It is not clear when the item was written; it was produced by the website Al-Thabitoun 'Ala Al-'Ahd, which is affiliated with Al-Qaeda in Egypt and is currently inactive.
[...]
"You feel that you want to carry a weapon, fight, and kill the occupiers, and that it is our duty to call for jihad as much as to call for prayer... All that is required is a firm personal decision to fulfill this obligation, and participation in jihad and the resistance...
"Do you really have to meet Osama bin Laden in person in order to become a jihad fighter? Do you have to be recognized by Al-Qaeda as one of its members to become a jihad fighter? If Al-Qaeda commanders should be killed, would the jihad be eliminated? What would you do if Al-Qaeda did not exist today? How is Osama bin Laden different from you? - [yet] he managed to establish the world jihad organization. Who provided training to Osama bin Laden and Abdallah 'Azzam when they went to Afghanistan to become the first Arab jihad fighters?
"The answers to these questions are the following: I don't have to meet Osama bin Laden to become a jihad fighter. Moreover, there is no need to meet even one jihad fighter to become one. Neither do I need recognition from Al-Qaeda...
"As the first step, imagine that Al-Qaeda does not exist and that you are interested [in waging] jihad - what would you do in this case?... If you know any young people - whether one, two, or more - in your area, mosque, or university who are as dedicated and enthusiastic about jihad as you are, come to an understanding with them, and together form a cell whose objective is to help Islam and only Islam...
"At first, your cell should have no more than five members, all absolutely trustworthy... The cell must have a commander and a shura council... The commander must clearly realize that he is Osama bin Laden to the cell members...
"Each cell should have a source of funding... When you have several members, you will [surely] find the funds for your cell... Then you should buy weapons, make plans, brainstorm, plot your plans, monitor your enemy's important objectives, and study its moves. Set a goal; for example, assassinating the American ambassador - is it so difficult? Is it [indeed] difficult for someone who has already crushed America in her home?
"What is the difference between you and the hero of the New York attack, Muhammad Atta, who planned an action which even today shakes the world every time it is mentioned? Assassinating the ambassador takes no more than a gun and a bullet. One could disguise oneself as a peddler in order to tail [the target], which shouldn't cost a lot of money...
"The cells must maintain contact among themselves, but by no means in a direct or conventional way. The contact must be spiritual: What will unite you is the love of Islam and the motto "There is no God but Allah." Even if the contact between [your] cell and the rest is indirect, it will be close... You must meet once a month... You must not meet in the same place twice... Personal meetings with a small number of people [must take place] once a week...