WowAce

Checks .lua files for excess and/or involuntary global variable access. NOT AN ADDON.

An auction house AddOn to make the life of each fence easier.

Addon to notify when you loot an item you're farming, such as lunkers or felblight

Spell interrupt aid and announcement addon.

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

Waitlist addon with EPGP Mass Award hooking.

Simple addon that sends EG gear/main data without running the full client

Helper addon for the Zul'Drak daily "Troll Patrol: The Alchemist's Apprentice"

Automatically switches Profiles of addons when changing spec

A 'channeling spell'-tracking addon for Affliction Warlocks. Drain Soul, Drain Life/Harvest Life and Malefic Grasp.

Simple addon to mill Draenor herbs.

Removes the in-game blizzard raid frames and the raid manager. Its useful if you have another raid addon that you prefer.

A very simple addon to whisper LK's Defile targets quickly.

This addon helps with daily quests.

Continously scan for addons using excessive CPU - especially bursts

A system config addon to WOW

ConfigMode support for various addons.

Simple, nice-looking power bar addon for all classes.

Addon for knowing exactly when you get out of combat so that you can drink.

Collectinator is an addon which will scan your pets and mounts and provide information on how to obtain them.

Battle.net point query addon in Chinese realms(中国国服战网点插件)

Minimap addon of awesomeness. *chewing sound*. It'll nibble your hay pellets.

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

Simple addon to enhance the moderation of private channels

Collects and displays census information. This AddOn is licenced under the GNU GPL, see GPL.txt for details.