The Muslim Brotherhood's Conquest of Europe - Middle East Quarterly - Winter 2005:
Many of the recent posts on Northern Virginiastan have focused on the Muslim American Society, the U.S. arm of the Muslim Brotherhood, which is rallying behind indicted terrorist suspect Ahmed Omar Abu Ali. The referenced article shows how various fronts of the Muslim Brotherhood have become the face of Islam in Europe and serve in advisory capacities on Islamic affairs to various governments in Europe. It's a long read, but worth it.
There's even a reference to Northern Virginia in this article:
"... [Sa'id] Ramadan [personal secretary of Muslim Brotherhood founder Hassan al-Banna] ... cofounded the Muslim World League, a well-funded organization that the Saudi establishment uses to spread its radical interpretation of Islam throughout the world. The U.S. government closely monitors the activities of the Muslim World League, which it accuses of financing terrorism. In March 2002, a U.S. Treasury Department-led task force raided the group's Northern Virginia offices looking for documents tying the group to Al-Qaeda, Hamas, and Palestinian Islamic Jihad."