Impetusium has two different types of "Big Vortexs" Here, much like Altgard. The ones that take skill level 50 to gather are much closer to the ground then the ones that take 75 to gather. The upside here is there is MANY different places to land and wait for your Flight Timer to cooldown, where as Altgard didn't have quite as many. Below is a picture of all the locations:
When your skill reaches 75 you will need to fly higher up into the Air, very much like Altgard. There are less places to land up here and take breaks, but this is the least crowded place you can come to in order to collect the Vortex's. The other option, if this place gets too crowded is Morheim. At 75 you will still be collecting Small Vortex's, the Big Ones are still a bit too hard for you to harvest.
The Small Vortex's all the way up top will take you to 99. Once your skill reaches 99 you will want to return to Pandaemonium and purchase the next rank of Aether Extraction.
NOTE: The most common places to find the Small Vortex's that take 75 skill to harvest is right around the pillars sticking out of the Impetsium.
So, I figure that this guide will give you the jist of things but what I can't do is cure your boredom. And lets face it, you're going to be bored. So, here is a set of links with things that I think will entertain you.
My Youtube Account Sub Dat Shit
Aion Leveling Guides
Aion Farming Guides
Aionsource General Guides
My Leveling Post on Aionsource (Post comments!)
Large Scale Abyss PvP Battle
My Favorite Band Ever & Favorite Song
Another Amazing Song
Quite Possibly the best Acoustic Cover EVER
The Second Best Acoustic Cover EVER
The Best Cover EVER ... EVER ... I DO MEAN EVER
The Second Best Cover EVER
The Final best Cover EVER (They shoulda just gave the band this song they did so good)
Quite Possibly the best metal song ever
I Write Sins Not Tragedies
Spiders on Drugs
My Actual IRL Voicemail
Granted Its WoW but at the end of the video, worst MMORPG player ever