Why Norway? Explanations from Jihadi forums

OSLO - Minutes after the blast that rocked the Norwegian capital, Islamic and Jihadi forums started spreading the news and congratulating themselves for the attack.
However, there were no obvious posts claiming the responsibility of the blast. Instead, (in some of the forums) militants were discussing the probable impact of the explosion on the muslim community in Scandinavia.
But unfortunately, they were all hoping that it was a group linked to Al-Qaeda that carried out the attack. They wanted vengeance for the elimination of their leader Oussama Ben Laden.
The first thing that popped up in everyone's mind when the explosion took place were the controversial caricatures published in 2006 by a Danish newspaper and later by a big Norwegian journal.
It didn't take long before people started wondering if Al-Qaeda was behind all this.
However, the shootings that took place at the same time, not too far from the capital, complicated the matter. It's not your typical Al-Qaeda operation. 
On the Jihadi forums, militants were already planning their next target. "Finland, France and England... you are next," threatened one of the members of the forums.
Later Jihadica.com posted a message by Abu Sulayman al-Nasir on the Arabic jihadi forum regarding the attack. The man does not claim it, but instead explains why Norway was targeted.
1-"For the publications of caricatures of our prophet"
2-"Because Norway sent 400 soldiers to +occupy+ Afghanistan".
A terrorist group called "Assistants of the Global Jihad" claimed responsibility of the attacks for the abovementioned reasons. And said there would be "more to come"
For those of you who can read Arabic, or who know how to use google translate check this thread on an Arabic Islamic forum.
May all who died in this attack rest in peace. Lets hope one day this madness will stop.