Server:Anub'arak Europe

Anub'arak (PvP)

 * Anub'arak Europe is part of Battlegroup 11
 * Server started on 13.04.2005

Alliance

 * Alliance of Chaos
 * Ancients
 * Gia Mas
 * Novus Ordo Mundi
 * Southern Joint Force
 * Auge des Sturms (website)
 * Die Sonnenlegion (website)
 * Elite Garde (website)
 * MultiCult (website)
 * The crazy Brains
 * Frozen Flame

Horde

 * Acumen
 * Bluttäufer
 * Die Niveaulosen
 * Doomhammer Clan
 * Enklave
 * Schlächter des Wichts
 * Der Wütende Mob

Karazhan
Guilds that haven't cleared Karazhan:

Anub'arak Guild Pre-Burning Crusade Progression
Here is a list of high end guilds of Anub'arak and what they have conquered most recently. (Original Post)