thottbot.com
wowhead.com
wowwiki.com
wowjutsu.com
elitistjerks.com
bosskillers.com
worldofraids.com
curse.com
wowace.com
wowinterface.com
wowmatrix.com (add-on management and updating application)
be.imba.hu (character analysis tool with Armory import)
gankbang.hu (Armory comparison tool (often broken))
worldofwarcraft.com
worldofwarcraft.com Staghelm forum
wowarmory.com