EDIT: I have tried recently to make a character with an accent or other marking in the name. every time, it says failure. I dont know if this is done by blizzard or my account or wow app has an error, but if you r having the same problems, this guide might soon become partly useless :-(
I don't know if some or all of this is repost, but I have a bunch of info that got me gold fast.
1. BANK CHARACTER
no matter what you do, always have a bank character stationed near an auction house. have one positioned at a main city (ORG) and one at a neutral auction house.
2. TRICK GOLD SELLERS
when you are looking for people who forgot to change the bid amount on high valued items, also look for low valued items at a high price. if you find something like linen cloth going on the AH for 2kg then you have hit the jackpot. Grab a piece of paper and write down the character name. log out of your current character and create a new one using the format in the example shown.(simply add an accent or some other small change to the name)
(person selling the item)- Littlekilla
(your new character name) Littlekílla
buy the same item that they are selling. auction it off using your new character for the SAME EXACT PRICE. goldsellers will not be able to see the accent and will buy the item from you as well, giving you a high amount of gold. YOU CAN NOT BE BANNED!!! They would have to admit to buying gold and in that case they would be banned. you are simply auctioning off an item.
3. SCAMMING
I know that there is good info on this site that can tell you how to make gold off of accounts and there are guides that also give you good info.
4. NEUTRAL AUCTION HOUSE ITEM INTERCEPTION
Look more on the website to find a post about this because there are some.
WHAT TO DO WITH THE GOLD
Get good items for your main :-)
Make a twink
Sell it to goldsellers :-O
GOOD LUCK and I hope that it works for you as well as it has worked for me