As you may recall, the World of Warcraft Gold Survey (called the Wealth Survey in previous years) is an attempt to ascertain how much gold the average player has on them. In addition to this, the survey asks some background and demographic questions to gain insight on how the gold is spread out, if different aspects of the game correlate to having more gold, etc. Last year, 11,344 people participated and I got some fantastic results. This year's survey will give a third data point, and will be the first time that a second survey has been done in one expansion, so I'm really looking forward to the results this year.
The survey is really quick, should only take one or two minutes for most people, and is completely anonymous.
If you're interested in WoW wealth, take the survey! And if you want more information you can check out Xsinthis' website. The reports are really interesting reading, very in-depth, and Xsinthis does a great job of presenting the data in a readable way. For example, as he reports, last year's survey in late-Cataclysm found the wealth gap between the mega-rich and the just-getting-by in WoW had widened. Nearly 82% of those surveyed were under the reported gold average, leaving only 18% of players over it. That average? 302,593g. 58% of responders were under 100,000 gold. Interested yet? Get involved!