WowAce

Emoticons (of all variations) in all chats in 3.3.5

Provides achievements for boss encounters

Just a better way to loot.

Creates a row of buttons showing you how many bosses you've cleared in each LFR

No Heals for You

Item rating based on your personal stat weightings

Tracks loot you want to obtain allowing multiple pieces in each slot ordered by progression path.

Garrison mission management

Text notification for stat Changes.

Raid Officer Chat

This is an addon that makes you one 16th of a block.

Combat statistics for World of Warcraft

Baggins (Ace3)

Ace3 port of Baggins_Professions

Ace3 port of Baggins_Usable

Informs you and/or your raid about the next target to kill

A pie chart of aggro for a unit.

LDB feed for reputation data

An Assistant to DBM by auto targeting adds and other enemies that need to be killed before the boss.

useful and helpful