WowAce

CleanShot

Collects, analyzes and presents information about the virtual economy.

Libary for cleanly inspecting other players

Smooth combat HUD based on ArcHUD2

Adds a Friendly Fire mode and data collection to Skada.

Shows the price of a single item in the Auction House.

Complain about crowd control breaks.

Adds Name and Buyout Price sort columns to the auction house.

Utilities for pixel perfection, decimal to hex, parsing item strings

A frame designed for each specialization of druid's watching their main power and important buffs/debuffs

A Perl layout with oUF.

A filter tool for blizzards TradeSkillUI

A simple addon that warns you if your pet isn't attacking while you're in combat.

Allows tradeskill usage by clicking items or reagents.

Customize the PlayerPowerBarAlt display

Displays a grid of guild ranks versus permissions.

Mark My Words

oUF_HolySmurf

Embeddable library to track raid/party roster

Raid Warning filering module for TweakHub.