In World of Warcraft, one of the top selling massively multiplayer online role-playing game, many players are playing the game for fun. This game is so interactive, everyone can play together with others, sharing their experience and playing as one team to finish some difficult tasks. But at the same time, many smart world of warcraft players make use of this game to make money. These kinds of players are known as Farmers and Traders, most of their activities are collecting world of warcraft gold and selling wow gold to other players.