The easiest way to make wow gold is to play and level your character up. Many of the best AH items in the game are not green, blue or purple, but instead are white. Sell everything you can in the AH, not to the vendors. If you played for several hours and end the day with only a handful of auctions, you are doing something wrong. A 3 to 4 hour play session soloing should yield you 15 to 20 items worth auctioning. Keep in mind that every item that is not gray is worth something to someone. You may be surprised at how valuable some items are. Cloth is an especially valuable thing to sell that tends to drop in large quantities when you hunt.

Check the auction house regularly for differences between raw materials and usable items. For instance, the materials for a Mooncloth bag can cost 5g, while the bags go for 8g. That's 3g for the click of a button. Be sure not to put up too many, or you will lower the prices. Exclusive skills are wow gold mines. Patterns that no one else has will make you rich, but not only those.

When in doubt, put it up for sale and see what happens. Set the maximum price you're willing to pay and wait patiently for the price to return to normal. Often, greedy players place items for anywhere between 200%-1000% of what they normally go for, and buying them is a bad choice. At various levels you will be earning enough wow gold to get what you need. So do not stare at the 8 copper you just found in that wolf's gullet in despair, you will make more wow gold as you progress through the levels.