Hey!
There are tons of ways to make gold in World of Warcraft, but this way made me 300gold in 20 minutes! But you need to be a mage
There are Pilgrim quest givers outside every major city. Now, this is good because mages have a portal to every city! So, you make a macro like the one bellow, and wait for the gold to flow through!
'Want your Pilgrims achievement as fast as possible? Then /w me for a portal to any major city for a fee!'
I normally get 30-50gold on my server; Haomarush Horde EU, and I weren't even trying. I was simply questing and shouting for portals every time I went somewhere.
This may seem common sense, but if you also make a macro like the one bellow, and do /who Durotar, /who Elwynn etc and whisper them, they might say yeh, and pay extra for you travelling to them.
'Hey mate, if your doing the Pilgrims quest, how about I make you a portal to every place you go for a fee?'
I was 6 guys persanol porter, and i got paid like 15-30g per portal. Nice gold.