Wave, my first post here, trying to contribute.
Note: I have only tried this on the horde side, but I'm pretty sure alliance shouldn't be a problem.
Ever rerolled on another realm, and had the problem you lacked gold?
Good thing people can be IDIOTS.
You can make lots of gold by selling vendor pets, yes, vendor pets.
They cost 40 silver each, and your able to sell them for over 20G.
Ofcourse it depends on your realm aswell, I was able to sell the pets for 50G each the first evening I started. Prices dropped to 10G after a week or so, but you aren't able to make these amounts of gold at low level.
Just tell people in trade "WTS <Pet> <Pet> <Pet>" and put some on AH, remember to check AH prices before you even start selling these pets, and also put some pets on AH, but not too much, people will actually think they might be rare and buy them.
I know this has been posted, well it was mentioned in one sentence, without any information so I thought I should post it anyway.
(As I stated before, this also depends on your realm, I can't guarentee good prices on your realm.)
About all pets listed here can be sold for 50G in the beginning, but at a certain moment you need to lower your prices, you'll notice when people stop buying.
List of vendor pets, and popularity:
Neutral:
Parrot Cage (Senegal)
Parrot Cage (Cockatiel) Sold by NPC: Narkk - NPC - World of Warcraft
Both sell pretty good, usually for around 10-20G.
Ancona Chicken Sold by NPC: Magus Tirth - NPC - World of Warcraft
Around 10G each.
Blue Dragonhawk Hatchling
Brown Rabbit Crate
Cat Carrier (Siamese)
Cockroach
Crimson Snake
Mana Wyrmling (Vendor price is already 40G)
Red Moth Egg
Brown Rabbit Crate Sold by NPC Dealer Rashaad - NPC - World of Warcraft
I can't really tell anything about prices, this isn't really for low level people either, just for lazy ones who'd like to exploit the stupid ones.
Horde:
Black Kingsnake
Brown Snake
Crimson Snake Sold by NPC: Xan'tish - NPC - World of Warcraft
Black King Snake will most likely sell the best, all three around 10-15G.
Prairie Dog Whistle Sold by NPC: Halpa - NPC - World of Warcraft
Sells for around 10-20G. Sells pretty good.
Golden Dragonhawk Hatchling
Red Dragonhawk Hatchling
Silver Dragonhawk Hatchling Sold by NPC: Jilanne - NPC - World of Warcraft
I think its safe to say that these little bastards will sell the best. For around 15-25G each.
Cockroach Sold by NPC: Jeremiah Payson - NPC - World of Warcraft
Sells for 10G, not the most populair pet but it won't hurt selling them
Alliance:
Cat Carrier (Bombay)
Cat Carrier (Cornish Rex)
Cat Carrier (Orange Tabby)
Cat Carrier (Silver Tabby) Sold by NPC: Donni Anthania - NPC - World of Warcraft
Can't tell you any prices, be creative. Don't start selling the pets for a too low price.
Hawk Owl
Great Horned Owl Sold by NPC: Shylenai - NPC - World of Warcraft
And again, I don't know Alliance prices, but I guess 15G will do fine.
Rabbit Crate (Snowshoe) Sold by NPC: Yarlyn Amberstill - NPC - World of WarcraftOnce again, me not know Alliance prices, 10-20G probably.
Blue Moth Egg
White Moth Egg
Yellow Moth Egg Sold by NPC: Sixx - NPC - World of Warcraft
Once again, me not know Alliance prices, 15-25G probably.
As a final note:
If you got the possibility, sell your faction's pets on neutral AH aswell. This way you can add about 30G to the price of the pet, but you won't sell as much as on your own faction's AH.