WowAce

Filters AFK and DND messages after you've seen them once.

Automatically leaves the global channels when inside an instance/raid and restores them when exited.

Warnings about tanking specific abilities

BigTrouble

A library to return spell duration and debuff type of a spellID.

Priority 3 loot announce addon

MessageEvent

Clean looking square minimap with many options.

FuBar_BongosFu

Information display for Hunters.

Mob respawn timers

FuBar_ExperienceFu

lugMD

A volume control for Data Broker.

Tells you who bought your auctions.

Allows frames to be dragged around, without permanently changing their position.

Profiler of the Lords of the Zodiac guild.

Battleground Timers in a HUD around the Blizzard BG status

FuBar_PetInFu

Calendar improvements