WowAce

Afflictions display and cleaning for solo, group and raid with advanced filtering and priority system.

Officially the original source for where things are in the Broken Isles, in HandyNotes

Collects Herbs, Mines, Gas Clouds, Archaeology, Treasure and Fishing locations and adds them to the worldmap and minimap

Arena unit frames

"Debug" code free since '93!

Myslot is for transferring settings between accounts. Feedback [email protected]

Tracks Raid/Instance/World Boss lockouts for all your characters, daily/weekly quests, currencies, trade cooldowns, and more!

Library to check whether an item is equipable / appropriate for a given class

The original source for where things are in Pandaria

Simple Map Mod

Replacement for ActionButton_Show/HideOverlayGlow APIs

Allows you to view all items from all your characters on the same account, when-ever and where-ever you want.

An intuitive keybindings library.

Creates and manages secure Action Buttons

Give whispers an instant messenger feel.

Estimated range display. Type /rangedisplay for config

In-game theorycraft. Calculates actual damage/healing based on gear, talents and buffs.

Another HUD addon

Shows the possible loot from the bosses

Simple and super light-weight tracking of profession links for all your alts.