WowAce

Add-on that shows in a unit tooltip window a number of killed mobs of the same kind

Saves who searches in a favorites list.

Sets the DND flag, when are in combat.

BigTrouble

Automatically sells low quality gray items and selected white items to the vendor.

GetInLine

Adds Raid Target Icon status to Grid (Player or Player Target).

Needja Tracker

Provides training reminders to help decipher the Blizzard Spell Alerts.

GridLayoutPlus

nRaidTracker

MoBuffs

Expo

Waitlist addon with EPGP Mass Award hooking.

FuBar_LoadLODFu

Test whether the player can really dispell a buff or debuff, given its talents.

Relog

SwapMagic

Keeps tracks of /rolls.

DarkCandy