[Orgrimmar: Valley of Strength, south of bank]
The Situation So Far: Go to Valley of Wisdom, in the room with Thrall, talk to the guy. If you enjoy lore, stay a minute and listen to the arguments between the leaders. :) [end of quest chain]
Prophecies of Doom: Go to the Drag (map) and pick up scrolls by the doomsayers. While doing this, talk to a Doomsayer and ask for a speech.
Signs of the Times: Look for posts with blue arrows above them. Post sign x5.
The Missing: At Jaggedswine Farm, keep your recruit's robe on and speak to Kagarn, Agtar, Tokka, and Rokaga.
Spreading the Word: Wear your sign at the designated locations (put it on before you enter the locations or it won't qualify). Map.
Thwarting Twilight's Hammer: Break rotating bobble devices (see screenshot) and kill resulting elementals.
[end quest chains]