I came across a interesting analysis of online jihadist from "The Atlantic". The author gives observations he has made and discussed.. "Irhabi007 aka Younis Tsouli."...-------------------

Aaron Weisburd of
Internet Haganah is given a mention in the article on the thoughts of strategic planning in regards to pwng these sites or gaining intel from them.
The following question was posed to the author in regards to Tsouli's arrest and his possible connection to other arrests

"In addition to the London arrests, you also write about a number of arrests made in Sarajevo and allude to a presumed connection between the two. Can you speak any more to that?"

Author:

"We certainly don’t know the exact nature of the connection. What we do know is that the arrests in Sarajevo involving Mirsad Bektasevic sparked the arrests in London and then in Denmark, where a number of teenagers were also arrested. And after the arrests in Sarajevo, the London police very quickly arrested Younis Tsouli and two others. It seems they were working off a tip from Sarajevo authorities. The exact nature of the tip—and whether or not the tip was completely credible—again, it’s just too early to know

"

More at The Atlantic