WowAce

Simple item compare tooltips

Provides search functionality to the chatframes

Uses Loot-a-Rang on double right click

Automatically swaps between weapons and lances.

Intelligent, slim paladin blessing management

Matte Vol Skin for cyCircled.

Track friends / enemies in a convienent window, with optional logging

CatFight

LibFriends-1.0

A javascript like implementation of array

Invite lots of players in the raid browser for world boss groups

Translates the received text icons {cross}, {skull} etc in your local language for multilingual raids

xcRaid

An in-game list of all hunter pet families and their abilities.

Makes the Blizzard options frame movable and resizable

With Mists of Pandaria Blizzard publish all characters from an account unless you disable that 'feature'. This addon warns you.

Auto sizes frame layout depending on group/raid size

Bar to display state of Incinerate Flesh debuff.

Random pet summoner

Adds the ability to send mass mails to guild ranks.