WowAce

AllYouCanEat shows information about the following statistics: beverages, foods, bandage types, potions, elixirs and flasks.

Colors friends/bg score board/who list names by class color

Adds achievement reminders to BigWigs

A helper addon for the achievements "Let It Snow", "Fistful of Love", "Shake Your Bunny-Maker", "Check Your Head", and "Turkey Lurkey"

Guide Handler UI.

Adanced Achievement Tracker is a smal tool to track Achievements

Automatically accepts and turns in the Holiday "fly around the world" quests.

BarovHelper

Selectively loots your fishing catches.

Ich bin ein Paparazzi.

Show a texture on demand

Resolve module for Broker displays.

Suicide Kings Addon

Alert your friends when you ding, get an achivement, or get phat lewts!

Takes a screenshot when you kill a boss or gain an achievement

An easy-to-follow guide for visiting all of the Lunar Festival Elders.

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

RareCaller

Records special in-game moments; Achievements, Reputation Gains, Level Ups, Battleground & Arena Wins, so you never miss one ...

Experience is an addon that helps you evaluate another player's dungeon experience.