World of Warcraft - What is Gold:
Gold is some amount of copper, silver, or a combination of any those types of coins. Your current total is shown at the bottom right of your open backpack window.
You can get gold by looting dead mobs, completing quests, selling items to vendor NPCs, via trade or mail from other player characters, or by selling an item at the Auction House. If you use money to put a deposit down for auctioning an item, you lose the deposit if it doesn't sell or if you cancel the auction, but any failed bids are returned via mail.
The WoW economy will always fluctuate, and large events such as the Burning Crusade launch will have a knock-on effect. The best advice to any player worried about an economic decline on their realm is not to buy any gold from gold sellers, as this will have a worse effect on the economy. Also, make sure you price your auctions based on market-value and not just stab-in-the-dark wishwork.
Although it is technically against the ToS to affect other's gameplay in a negative way (including the economy), it's generally accepted that under-pricing doesn't count as it doesn't affect the average wealth of players on your realm. It's also generally accepted that underpricing is very annoying, since other players will find it difficult to sell items at the correct price, and it may even lower the value of the item you're selling. Slight underpricing (up to around 10% of market value off) is acceptable, however. Although little is known about the actual average WoW player's wealth, there is much speculation about it and wherever you look you'll find a different figure. Blizzard has yet to publish anything regarding the economic status of any of the servers in any country.
Making Gold With Dailies:
There are more and more people joining the ranks of World of Warcraft every day. Nobody can get enough of this game and there are plenty of reasons why. In WoW, you can escape the realities of everyday life. Just relax, do a few dailies to make a little gold, and just have fun with friends - not a bad way to spend an evening. And as you do this, you'll naturally make gold over time.
However, there may come a time when you want to get a little more out of the time you spend in the game. There are items that cost 20,000 gold, and surely you want those items. This means that in order to get the most out of your WoW experience, you'll have to make gold as quickly as possible.
But how do you do this? There are several things to keep in mind when trying to make gold quickly in WoW by doing dailies. You probably already know that daily quests award you with gold for completing them. And initially, in WoW, items do not cost that much gold to purchase. But eventually, the items become very expensive, especially the best of the best items you'll want to get when you hit level cap. So, you need a game plan to be able to afford all the items you want, if you want them before the end of time.
Focus on Gold
When you want to build up a stockpile of gold quickly in WoW, you have to supplement your regular activites with activities designed specifically to make you a lot of gold. Doing dailies is a great way to make a lot of gold quickly. All daily quests pay out gold when you complete them. The key is to pay attention to the amount of gold each daily rewards you with when you complete them. You should also take time into consideration when trying to make gold fast in WoW using dailies. If you can make 200 gold, but it takes you 5 hours to do it, that's not very much gold per hour. There are good ways to make a lot of gold per hour, such as optimized speed gold dailies runs.
There are guides available that will lead you step-by-step through completing speed gold dailies runs, among other cool things. Zygor's Dailies & Events Guide is one of those guides. Save up your gold from completing speed gold dailies runs every day and you'll be well on your way to making gold fast in WoW and buying those expensive items you want.