WowAce

Reverse Engineering will drill down and search your tradeskills for their elements

Puts a timer in /yell when you get Unbound Plague during the Heroic Professor Putricide encounter

Quest information

Audible Alerts for self-gain, self-lost, any-gain, all-lost of statuses.

FuBar_combatTextFu

Library to provide non-explicit cooldown tracking and callbacks.

Powerleveling guide framework

Cartographer_Mailboxes

Ghost: Pulse

EnvenomX

Simple Bars for your Shaman's weapon buffs and shield spells.

A Data Broker add-on for quickly switching your specialization with gear set and loot specialization.

FuriousTask

RS_ClassColors

Destruction Warlock priority module for clcInfo -- Maighurl

Calculates incoming damage avoidance and mitigation

Paparazzi

Customize the appearance of the chat bubbles.

Fancy up the PlayerPowerBarAlt frame

Provides bang-whispers for your professions.