Okay im not sure if this has been suggested to lazy to check.
But here are things I do when I need some gold.
1. I bot - I useually bot ore/herbs i use honorbuddy (You can buy a bot, there are free ones out there though) - you dont need to use this method, I dont unless I need lots of gold fast - you can also bot for pets/cloth
2. Farm MC (Molten Core) - from all the trash to vendor + all the greens you can d/e and sell enchanting matts + the cloth + little boss drops = i usually make round 800-1.2k a week when i can do it (available only once a week)
3. Farm lowbie dungeons - D/E stuff and sell it, sell BoE blues that go for a lot, and sell cloth - almost every dungeon has cloth, greens to D/E, if your lucky BoE blues to sell
REMINDER Some of the methods I use you may not want to use, may not want to spend money, might not want to risk getting into trouble or may not have/will have or know how to do
4. This has been suggested but I play on EU now so you can run your own "legal" casino which works amazingly
5. I can dupe so i do that - this obviously wont be available for 99.99% of the people here, unless you have the method/know the method
Top things i do- Dupe, and Bot, Play the ah, run a casino
Need help making gold? Need any Tips Id be glad to help you out, just reply, or PM ME
(If your gonna ask me to give you the dupe method dont bother asking, unless your offering something amazing)