I am not sure if this has been posted but if you need motes of air the best place i have found is if you go behind the Altar of shatar (careful if your scryers if you fly to low they will kill you) and run along the edge east and west, you will find tons and tons of enraged air spirits Thottbot World of Warcraft: Creature: Enraged Air Spirit.
Pic for those that need it Image of Easy mote of air - Photobucket - Video and Image Hosting