The best way to collect AP is through world quests, a system that allows players to complete menial tasks to earn moderate rewards. A finite amount of AP spawns on the map through these quests — generally at least 2,000 a day. I’ve likely done most of these quests close to 20 times in the course of preparing my various characters in the 45 days since the expansion launched. In some cases, I’ve replayed them as many as 50 times.
It surprises me how this farm was not made public until Legion. It literally slipped through our sights all throughout WOD, where admittedly it would of been a GREAT replacement for the infinite embersilk spot that was quickly nerfed. Anyway, this volatile fire spot takes place in twilight highlands in the humboldt conflagration area – which is a small fire bed with about 20-30 elementals roaming around. Each time you kill you have a chance to recieve volatile fire which is worth 50 – 100g per drop. However, according to my test, the volatile fire has a higher drop chance than the volatile water. I believe this has to do with the popularity of the volatile water farm in WOD, it's popularity may have of gotten it stealth nerfed. Sad to say, but this spot is slightly better in my opinion. REMEMBER to use a potion of treasure finding.
If you can answer all of those questions with yes, then you are in a position to make a lot of gold! You can continue doing every step to get to the gold cap as quickly as possible. The security achieved through this can buy you virtually anything you desire in the game, including achievements that would otherwise be impossible on your own, which leads us to the final gold making tip - Selling achievements. If you are the leader or officer in a guild, you can take good acquaintances on your raids with you for achievements like finishing ICC or any other hard raid achievements that your guild finds easy and manageable. I have seen achievements go for 20k+ if you find the right client! This is very situational, however, and is by no means necessary to hit the gold cap, it just helps!
The entire Jade Forst is our farming spot for this one. Literally, the entire Jade Forest. The Jade Forest is crawling with porqupines and if you have a mage character, each one of them has chance to drop the polymorph porqupine tome. Which is excellent, because these tomes have a selling point of 13,000g across the board. They are really easy to get, and noone really pays attention to these spots. Try it if you like, I was able to get 2 on video, and have already sold one of them.
Darkmoon Faire: The Darkmoon Faire comes around once a month and provides two ways of bonus XP. You can ride the carousel to get the “Whee!” buff (10% bonus XP for one hour). You can also get the Darkmoon Top Hat by playing a few games, which gives you 10% bonus XP but only works during the Darkmoon Faire. Both of these are generally not worth it for the most part, as you spend more time running to get the buff than you gain in XP when leveling.
Guilds are perhaps one the most effective ways of progressing your character, and in turn, making money. Most 'high-end' guilds have a guild bank where members donate items for other members. This may range from potions, reagents, and craftable plans. Usually you will have to donate to a guild bank in order to receive items as well as stay active in your guild, but receiving potions that will aid your progression and craftable plans allowing you to profit off selling the products will benefit you in the long run. Also, donating to your guild bank may mean donating something you cannot use in turn receiving something you can use. Sometimes, additional services such as VoIP servers are provided and play a key role especially in end-game content; communication is paramount to a the success of an efficient group. Efficiency results in receiving gear faster, running more frequently in a shorter amount of time, and in turn making more money from runs. In a well put together guild, members become a close knit community including financial and questing support, which are among the most profitable benefits. If you have not considered joining a guild as part of your strategy moving through the game, you may wish to strongly reconsider.