SSC has been known for it's abundance of pet drops, which is why this farming spot exists. It can only be done once a week by each of your characters, so make sure to hit it if you can. Generally you'll want to kill all the bosses for a chance at their rare pets. Everytime I go, I have the luck of getting one, in the video I actially got the Tideskipper to drop, and a video I done on the spot before that, I got the tainted waveling. So yeah. It's a pretty awesome spot with high rewards and also some world drops. I was able to snag a will of edward the odd as well, totalling a nasty 35,000g. The most important part is that you kill the bosses, the pet drops do sell, and they are very easy to get. Well worth the time invested.
As an example, I know that prices for Goblin Glider Kits fluctuate a lot. I used to sell mine for around 30-40 gold each about 2 months ago, but recently the market was flooded with them so the price is down to under 10g each on my server. By experience I am pretty certain that the prices will go up again, so right now I am hoarding them on one alt, both by making them myself and by buying them on the AH when they are really cheap. As soon as the price goes back over 20g I will start unloading them for a profit.
A cool little pet farm that can take minutes or ages depending on the god of luck. This spot contains some of the most dense troll spawns in the game, and each has the highest chance to drop the parrot pet thats soo sought after. On every serve rthis per has amedian value of about 70,000g so picking one up can be a pretty cool feat. Like the sprite darter hatchling spot its, a random farming spot that requires alot of RNG to pull off, but if you get it to drop you can make out in spades. The other drops are miniscule when compared to this spot.
This farm almost did not make this list. Even though I have had only a little luck with it, it seems to be gathering some popularity in the gold farming community. Although I feel with the recent changes in 7.3, this farm is very close to dying out. Generally what you want to to do is pull every mob you can as you venture to the last boss in the instance. The only saving grace of this farm (if you can call it that) is that some mobs are GUARANTEED to drop greens. Guaranteed. Whether or not they drop profitable greens is a different question, however it's a must-mention quirk you get from running this instance. It also allows you to get your hands on some rare low level blues.
You will need to cover very large areas in order to get a few chests as they are quite rare. Vanilla, TBC and WotLK zones work best. The way I like to do it is to park one Rogue class trial in Outland and one in Northrend, then fly over the whole continent and look for chests. One whole run might only yield 3-10 chests but you will still make a bunch of gold as you are almost guaranteed rares in chests in these zones.
YouTuber Oldbess recently uploaded a video about this cool method. Generally completing the scenario "Deaths of Chromie" will allow you to pick up the item "Time-Lost Wallet" in excess. You can get it from just killing the mobs or actually completing the scenario in full. By then end you will have dozens of time lost wallets. Each wallet awards 50g AND a rare chance at getting the ]bronze proto-whelp[/U] pet. In the video, this spot was VERY hard for to pull off as it requires a high item level. With an 809 item level I struggled all throughout the scenario and could not make this spot profitable for the time invested. The good news is, if you can get it done, the gold you make will be entirely liquidated – the rewards are 50g raw for each wallet turn in. I suggest you watch it on Oldbess's channel for full details.
Go to https://www.tradeskillmaster.com/pets/compare to compare prices of different servers. I’ve done this a lot, and I’ve bought pets for a few hundred gold on a server, transferred it to my main server and sold for 10k gold and more. You also need to buy cheap pets on your main server to transfer to other servers so that you can build up a bit of gold on other servers so that you can buy pets.
The NPC scan and NPC alert method is an awesome way to build a stock of rare BOE items simply because you don't really have to try. By installing NPC scan and NPC alerts, you can literally just fly over anywhere and be alerted when you pass a rare spawn. As we all know, rare spawn loot tends to have higher item vales, as not everyone is able to consistently farm them. Some NPC's, especially those in outlands have those higher item values when compared to the rest of the world. As a goldmaking method I just everyone should be doing this. It only requires you download two addons and you can get access to important NPC,s that you would otherwise never knew existed. The opportunities are endless, I would generally never play without these cool addons. Realy cool.