Site founder Rita Katz said the messages show “just how much al-Qaeda is intimidated by Obama.”

“The leadership of al-Qaeda is very concerned about the wide support that Obama has been receiving from Arab and Muslim countries,” Katz said. “To combat this threat, al-Qaeda has embarked on a propaganda campaign against Obama, not only by linking him to the policies of the Bush administration, including the occupation of Iraq and Afghanistan, but also by accusing him of actions in which he had no part.”

Other jihadist groups appear less threatened, or perhaps more accepting of an American commander who appears more open to peaceful accommodation, Katz said. A publication known as Al-Samoud, linked to the Taliban in Afghanistan, viewed Obama’s election as a welcome sign that Americans are “very much tired from the bitter war” and do not wish to prolong a conflict “ignited by Bush’s insanity and his satanic policy.”