Wowhead http://www.wowhead.com
TankSpot http://www.tankspot.com
WoW Wiki http://www.wowwiki.com/Portal:Main
WHU (hunters union) http://www.warcrafthuntersunion.com/
tails of a Priest http://talesofapriest.com/
WoW Forums http://forums.worldofwarcraft.com