UPDATE:
http://internet-haganah.com/harchives/006792.html#006792
Quote - Snippet:
Note: it’s not just you - of the sites in our current Top Ten list, 6 are down, and two (Hanein and Ana al-Muslm) should really be removed from the list. That leaves at-Tahaddi and Majahden as the only active jihadi forums as of 2010-02-28 20:15 Z.
PS: The al-Luyuth al-Islamiyyah forum is also available, but not very active - you’ll find it here: http://www.leyoth.info/vb/
ON THE INTERNET:
www.atahadi.com
www.atahadi.com/vb/index.php
www.majahden.com
www.majahden.com/vb/