WowAce

Manages the scanning of the auction house in a reliable an efficient manner.

Right-click on minimap blips to open a targeting menu (out of combat).

FelwoodFarmer

LibFuBarPlugin-3.0

FuBar_BongosFu

This addon helps us track Renewing Mist and Uplift for Mistweavers.

Adds a confirmation dialog when crafting Bind-On-Pickup trade skill items

Debuff Monitor: A Powerful & Configurable Raiding Tool

Adds aura indicators to unit frames

Group interrupt cooldown tracking.

OneChoice tries to help you reduce quest reward choices down to, ideally, one choice.

Tracks specialization and talent data for group members

A Perl layout with oUF.

DebuffEnough

Complain about crowd control breaks.

Show a bar indicating the attack power gained from Vengeance.

A library that tells wether a item is a quest item or not (equipped or in bags)

Fade Blizzard Raid Frames

Gnomish math at its best!

Hotkey interface for spells, macros, other clickables.