WowAce

Applies LibKeyBound to Spell Book and Macro UI Buttons.

Shows how many epics (and other qualities) you are wearing

Battle.net point query addon in Chinese realms(中国国服战网点插件)

Continously scan for addons using excessive CPU - especially bursts

Keep you bags clean with easy loot filtering and removal.

TrafficJam

sRaidFrames plugin - adds POH range indicators

SCT_SpellReady

AutoGratz

An Addon to make give stock messages based on location or target.

YellCollect

Enables RatingBuster to calculate selected buff effects even if you don't really have them

Displays current LFG Tool times and warns when ready

Show coordinates on minimap

Provides info about spell teaching items.

Determines who really failed at Defile during the Lich King encounter

FuBar_HealBotFu

Reduces achievement spam when a group of people earn the same achievement.

Assign different roles to raid signs and post them to the chat

Extends the functionality of bars in SUF