If you are a skinner you make even more gold.

In winterspring where the elite dragons are you can make alot of gold
They have a pretty high drop rate of Mature Blue Dragon Sinew that sells for 300-400g depending on your server but on my server they sell for 300-400g. They also drop lots of grey that you can vendor for some g, And plenty greens to. If you don't already have 16 slots bags you will get yours there to
I've got pretty much of Traveler's Backpack. That sell for 18-25g at AH depending on your server as always

If you are a skinner you get alot of rugged leather and blue dragonscales.
And they also drop silver from 14-20s, They are easy to kill solo also, I'm a shaman with decent gear killing them with no problems.

My exact amount of gold right now is 3453g

I hope this will help all those poor guys out there.

the droprate % of MBDS check below

http://wow.allakhazam.com/db/item.html?witem=18704