It's no secret that selling Enchanting Mats is a great way to make gold. I've been selling tons of mats to help reach my goal, and let me tell you.. The results are fantastic.
The best way I've found to make serious gold off of enchanting mats is to set-up your Auctioneer's Snatch to find great deals on the materials you need to make "DE Fodder". What you'll want to do is look-up the following green items DE value by using Enchantrix and then decide what the max price you can spend on mats is while still making profit. Then after you scan Auctioneer let Snatch do all the work!
Leatherworking:
Leatherworking is my new favorite source of Enchanting Mats! I've found people posting stacks of Borean Leather for as low as 3g! That kind of profit puts money signs in my eyes $.$ ;D
Arctic Boots
x8 Borean Leather
Jewelcrafting:
DEing rings used to be my #1 source of enchanting mats until the price of Eternal Earth sky-rocketed on my server. Where it used to be 1-2g per eternal, it's now 6,7 even 8g per eternal. Add that to the cost of the green gems and you've got some damn expensive rings on your hands! I can generally still find some good deals late at night on Eternal Earth and green gems which still makes DEing these worthwhile.
Bloodstone Band
x2 Crystallized Earth
x1 Bloodstone
Crystal Chalcedony Amulet
x2 Crystallized Earth
x1 Chalcedony
Crystal Citrine Necklace
x2 Crystallized Earth
x1 Huge Citrine
Sun Rock Ring
x2 Crystallized Earth
x1 Sun Crystal
Blacksmithing:
Cobalt is pretty iffy on my server. I only use this as DE fodder if I get a great deal on it. Sometimes you find people unloading this in bulk in trade chat. If you see someone make sure to toss them a whisper and see if theres a discount for buying their entire stock. Most of the time people will be so happy to just get rid of it all, they will drop the price way down. BTW, this works with everything people may be selling in bulk, it never hurts to ask!
Remember 1 cobalt ore = 1 bar!
Horned Cobalt Helm
x8 Cobalt Bar
Tailoring:
I don't really recommend using Tailoring for DE Fodder unless the price of frostweave is super cheap on your server, because you have the high cost of Eternium Thread to deal with. Make sure you are exalted with the vendor's faction selling the thread, It'll save you about 12g a stack versus being friendly with them ;) Right now a stack of Frostweave is 8-10g on my server, so it's better if I just sell it on the AH rather than DE it.
Duskweave Belt
x7 Bolt of Frostweave
x1 Eternium Thread
Frostwoven Belt
x3 Bolt of Frostweave
x1 Eternium Thread
As always, play it smart and remember that these are results on my server. Every server is different so you need to find what works best for you! Goodluck!