WowAce

SRA

Library that tracks incoming heals

Cryolysis 2

GotWood

WhoDrop

SacredBuff

Remember locations that city guards direct you to for HandyNotes

Displays Pet Info for Hunters and Warlocks. Also keeps track of Stables and Pet and Demon skills.

Try on different gear and see their total stats and their differences. In short, an ingame CT-Profiles-like addon.

Sells all junk in your inventory at once.

A collection of Rogue modules.

Cartographer_QuestObjectives

Switch macro depending on zones or BigWigs boss modules.

UnitActionBars

Litmus

Inspects all members of raid and saves in database, as well as lists people's dkp values

Configure triggers to send messages to your raid team such as timers, rotations, and health/power based triggers. Raid smarter not harder.

Visualises healing.

Keeps track of your current location.

Shows skills in a tooltip and allow them to be used. Also keeps track of Cooldowns.