This addon is by far the most powerful auction house and profession addon in the game.
This one is of course no surprise, as I just finished my guide to TSM4. Here you will find addons that change the functionality of the auction house. This is the most important category for goldmaking. In this post I will go through my favorite addons related to goldmaking. Getting the right ones will improve your performance considerably.
World of Warcraft is a game that can be changed massively through the use of addons.