ok alot of this has to do with mineing, But hey dont go away right now theres some other tips for non miners. i woudl recomend level 20+ for this guide.
Please enjoy.
The barrens, is a huge source of tin and copper so is a place in murglor that no one knows about.
you can easy make 120 copper ores from this.
i do it all in about 1 hour with my level 40 mount and make at least 30G
heres for the non miners.
in the barrens in and around WC (not the instance) Verry often you can find rarespawns there with items that twinks will buy for sometimes an outrageous ammount.
they are
Thottbot World of Warcraft: Creature: Trigore the Lasher
Trigore the lasher
and
Thottbot World of Warcraft: Creature: Gesharahan
Gesharahan
and last but not least
bohan
Thottbot World of Warcraft: Creature: Boahn
No SS for him, sorry.