WoW Gold Price List
One thing with buying World of Warcraft Gold is that you need to keep a constant eye on the market price to be sure you get the best value for your $. Checking out different vendors can be a pain so I follow the prices on WoW Gold Price List. They also have a European section for WoW gold for European servers.
With over 8.5 million subscribers World of Warcraft is the most massive online game community. The market for WoW is fairly stable, but you should always be sure to buy from a reputable WoW gold vendor. WoW Gold Price list covers the major WoW gold currency vendors.