The Ansar al-Mujahideen forums are totally compromised, and have been for about a year and a half.
First the server was hacked, the database deleted, and the front page replaced with a page that attempted to infect each visitor with a virus. The attack appeared to have been aimed at the server, and all the sites on the server were treated similarly - in other words the jihadi site was just on the wrong server at the wrong time. What the Russian mafia did with the data *they* collected is anyone's guess.
Then the admins, in the process of attempting to restore the site, left not one, but a half-dozen copies of the database in plain view where the site's front page was supposed to be.
The rest, as they say, is history.
Ansar al-Mujahideen forum (English section)

US location data obscured for reasons that should be obvious
Evan Kholmann has just written an exposé of the Ansar al-Mujahideen forum which features - among other things - extended quotes from "private messages" exchanged by the forum's administrators and leading activists. It will be published in the February 2010 edition of the CTC Sentinel.

Make your time.
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For those of you who are not aware of the origin of the 'all your base' meme:
