Complete with a section in Hebrew (presumably so the brothers can demonstrate that they know how to use Google to translate - either that or that they are Israeli Arab jihadis who actually paid attention in Hebrew class).

http://www.majahden.com/from/index.php

PS: the answer to the question asked over at Jihadology is that, AFAIK, this is the first forum with a dedicated Hebrew section, though previously jihadis have posted content in Hebrew - including some messages to yours truly (which is funny considering that I'm not Israeli and have only the most limited ability to read Hebrew).