WowAce

Drop the cheapest thing you're carrying

Lightweight but powerful auction house interface

Complete tradeskill information.

Simple and super light-weight tracking of profession links for all your alts.

Automate Your GDKP Auctions, Bids, & Payouts

A replacement tradeskill window

Keeps track of current money and all your characters on one realm.

Helps you automate selling stuff

LDB display of currencies, gold totals and session / daily / weekly statistics for all characters on a server.

Simplifies GDKP bidding processes

LilSparky's Workshop mod for Trade Skills

Save and send chat messages to many channels. Allows quick item and profession linking within your messages.

Replacement for default bags.

LDB data source for currency flow

Helps you automate selling stuff.

An auction house AddOn to make the life of each fence easier.

GemCensus inspects people and records which gems they have socketed. Then displays which gems are the most popular.

trade history log, recent trade list by [email protected]

Track any items you want in a tooltip

This will keep track of how much you have paid per item in your inventory. Only one of (Auctionator, Auctioneer, AuctionLite,...