Not all Salafis are political, let alone extremist, but in Germany...
ahlu-sunnah.com: virtual home for Germany's HVEs
The founding father of the forum is Tarek S., who claims at various times to be either in Dresden or Hamburg. The domain was first registered on 24 April 2008, and remained in the name of Tarek S. until 26 November 2010. Between the 24th and 26 of November the domain was transferred to Hostgator.com of Houston, TX, who hold it in proxy. Whether or to what extent Tarek S. may have distanced himself from activities in support of terrorism at that point is not known to me.
Why the change in November of 2010? Germany was on high alert at the time, fearing an attack possibly linked to Yemen. And it would be reasonable to view ahlu-sunnah.com as a source of inspiration to and/or a place frequented by homegrown violent extremists, particularly followers of Anwar al-Awlaki. There was clear evidence, not only of support for Awlaki and his views at ahlu-sunnah.com, but also of the presence of ahlu-sunnah.com forum members among the activists at anwar-alawalki.com, the dear deceased sheikh's blog. The most notable example is the following entry from Awlaki's blog:
Awlaki had just given permission for his followers to translate his work into whatever language they could. By the time blog was taken down following the Ft. Hood attack, work was underway to translate Awlaki into 18 languages. Bruder AmatulHaq was proud to announce that a group of brothers and sisters had translated various items into German. Two were posted at ahlu-sunnah.com, and remain there to this day:
It's not like ahlu-sunnah.com is trying to hide their infatuation with the former head of external operations for al-Qaida in the Arabian Peninsula:
And the effort to translate Awlaki's screed re: Somalia is... interesting, particularly in light of more recent data showing that Somalia is supplanting AFPAK as a preferred destination for German jihadis seeking action abroad.
Regardless of what pressure may have been applied to the operators of ahlu-sunnah.com in November of 2010, or what surveillance the German government may be conducting on the site, neither was sufficient to prevent the murder of these two American servicemen:
Alden is survived by his wife Trish, daughter Lilly, and son William. Cuddeback is survived by his mother De Loyet, father Bob, and brother Tim.3/4/2011 - WASHINGTON (AFNS) -- Air Force officials announced March 3 the deaths of two Airmen as a result of the March 2 shooting at Frankfurt International Airport, Germany.
Senior Airman Nicholas J. Alden , 25, of Williamston, S.C., assigned to the 48th Security Forces Squadron at Royal Air Force Lakenheath, England.
Airman 1st Class Zachary R. Cuddeback, 21, of Stanardsville, Va., assigned to the 86th Vehicle Readiness Squadron at Ramstein Air Base, Germany.
My sources in Germany report that at a minimum, Arid Uka was an avid consumer of the hateful ideology espoused within ahlu-sunnah.com. How did he escape detection? Probably by not saying anything. Not saying anything is the norm on Islamic extremist forums, and this is the problem with relying on what people say as an indicator of what they will do. If you want to prevent terrorism, rather than merely investigate after the fact, you need to identify the communities that spawn operational terrorists. ahlu-sunnah.com is one such community.
Among the connections between ahlu-sunnah.com and Arid Uka is one Ibn Bashir, of Marburg, who was a Facebook friend of Uka's and clearly identifies with ahlu-sunnah.com. Not surprisingly, when we look at Ibn Bashir's friends we find many who were also friends of Arid Uka, and in addition are linked to each other. This is how you know you're looking at a network - regardless of what node serves as your point of entry, you keep seeing the same people. In this case there are so many links that I'll be putting further discussion of this network into a thread of its own.
 At least in terms of domain registration. It can be safely assumed that the site is actually the product of a network, of which Saidi is probably not the ranking member.
 As a quick and dirty measure, a Google search for site:ahlu-sunnah.com+awlaki produces 330 results.