WowAce

A simple slash-command-based addon for querying item information from the Blizzard servers via ItemIDs and SpellIDs.

Quest Complete

Dedicated to Lazybones of EU Khadgar who had the original idea as he can't find a damn thing in his bags. You're a great guy...

Creates a new, movable, fully customizable quest watch frame.

View party member quest logs

QuestAnnouncer

Improved Questing Experience

Pins on the World Map for quests you have not completed yet

Simple quest item bar.

Simple quest item auto keybinder

Chooses the most expensive quest reward and vendors it when possible

QuestLongList

Point to quest POIs on your minimap

Show what quests have changed

Go quick, or go home!

Quick Enchant

Quickly builds /target macros for immediate use.

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

Mute error messages of N next spell cast.

Quixote