Gain Tracker tracks gains achieved in World of Warcraft and provides aggregated statistics.
Currently, Gain Tracker tracks gains in XP and Gold. These gains are further differentiated per class, talent spec, zone, level and rested state. In addition Gain Tracker also tracks the time spent to achieve these gains. With this information Gain Tracker can provide answers to questions such as the following:
Gain Tracker works by an in-game addon that records gain data. This data is then uploaded to the Gain Tracker web site. Data contributors get a detailed personal report on the gains they have produced with their characters right after the upload. Apart from that, the Gain Tracker web site displays data only in aggregated form.
Future plans for Gain Tracker include more and improved statistics on the web site and tracking additional information, such as the announced PvE points.
As you can see, the Gain Tracker database would benefit from some more contributions. Please give Gain Tracker a shot and contribute some data. I welcome your feedback on what you would like to see in the addon and on the web site.
While the focus of Gain Tracker is on Cataclysm, the addon also works on live.