Not sure if this belongs here, but I found a location where there is currently 2 Rich Platinum ores close to one another.
Platinum ores are going for about 1 silver each.
Mining the 2 ores yields 20 ores, and since you can guest up to two servers..
you can mine up to 60 ores in total per day.
Which is 60 silver per character.
This is better than camping at Southsun for the Orichalcum ores.
Location is in Rebel's Seclusion of Fireheart Rise.
Entrance to the seclusion is northeast of breaktooth's waypoint.
Server that I know current have the 2 ores:
Blackgate
Maguuma