Jihadi Internet Communications.
I checked it out and there is nothing too earth shattering in the document but there is one eye-opener. It says the jihadis find insecure servers on the net and use them for file storage and transfer. One example pointed out is a Japanese server that has some jihadi files mixed in with a set of pictures of school children. The files are similarly named and the whole bit.
Computer security is not as trivial as you think even if you run a small site.