Make gold in world of warcraft by helping others with quests
By helping others with their quests in wow you can make quite a nice amount of gold. All you have to do is find someone who has problems with finishing quests and is willing to pay you gold for helping him. If you’re at the maximum level in wow (80) you most likely know most of the quests in world of warcraft and shouldn’t have any problems helping others finish them.
Again this way depends a lot on how much wow gold is the person you’re helping willing to pay for the help.