WowAce

Uses linear regression and a log of hitpoint values to estimate how long a boss has left to die and reach execute range.

BlessingBar

Logs hunter's use of Feign Death

Adds a cooldown timer for Nezir's Ice Patch ability.

changes LFR wing descriptions to encounter lists

Storage library for tasks.

A simple equipment manager

Prints combat duration to chat after each fight

Simple loot specialisation display with selection in tooltip.

Guild members

Torta

Displays a table for possible outcomes of incoming hits with their probability

Simplistic addon to load Talented on demand

SCT_Cooldowns

New/Old BG indicator, Join by ID, Quick Leave Queue, etc.

Automatically retry teleporting to the instance when the server cannot create a new instance for you.

Removes HP buffs when Infest debuff hits player.

oUF_IncomingHeals

Keeps track of instances you are saved to on your characters.

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