recently i have found 2 ways to make lots of gold have made about 500 off each way so far.k.
1st: Scarab Coffers in AQ20 i usuallly buy the Scarab Coffer Keys or farm them before raids or after then while i run aq20 with the guild i look for ones that they missed ( dwarf treasure tracking ftw) and after raids done i come back take the idols, scarabs etc and sell them usually make 40-60g per coffer
2nd: Undead Straholme ~~Rogues and Hunters~~ ( mostly if u can easily run past the 1st group and live and solo a 57 elite) after you get in open gate run back to make mobs not charge u then run up open it follow the wall to the left and Feign Death Vanish whatever. then go into that underpassage and type /target Hearthsinger if hes in the right spot to pull or u think u can pull him but watch out for Abomination and Ghoul pat. Basiaclly u fight him ( go back a bit he uses range) get his blue drop shard it ( also you get a corrupter's Scourgestone nice rep) and then reset ,rinse, and repeat ive gotten around 100 shards from this usually about 10 a day if im bored and not doing hunter quest. ( if not a disenchanter you cna sell to vendor for a nice price usually) also from Hearthsinger Forrestglen you have a chance for the Flaming Piccolo which is Lag enemy ( makes every1 around you dance) well i hope these help enjoy!!