Guide: Warrior Tanking 101

[Viskus]

And it's actually so simple to tank, too!
Shield Slam -> Revenge -> Devastate -> Devastate
Keep Shield Block Up
You win!

[Mineh]

It's actually a very good guide.

By the way, all this theorycrafting and stuff is moot if you're lower than level 70 - 1-69 all you really have to do is stack as much stam as possible, spam sunder armour and heroic strike.