Therazane: all but the one to save pebble and collect motes
done the son of glop thing 10x for the acheive then no more
done all till exalted
you'll need therazane anyway for the pve shoulder chants

Dragonmaw: All but the food gathering. the wildhammer insignia one is shared gather so it rocks

Earthen Ring: didn't do any, got exaulted from doing hyjal

Sanctuary of Malorne: all but the wings one for the aviana (not shared and its a pita)

Molten Front: this one is kinda tricky
on the first set, all but the magmolia one
Forlorn spire set:
i never to the cave one (it's phased PER toon)
or the one to collect the eggs (get it about once per week)
TolBarad Peninsula: all but gathering can be up to 5 or so
TolBarad Zone: you will always get 4 that are kill so it rocks

Thats all of the ones i've done so far