WowAce

Simple and Advanced combined - Bartender4 ActionBar AddOn

Chat addon, filtering messages and UI changes

Library that handles chat output.

Handy notes for your maps

Makes the default frames moveable via simple drag and drop

Scan for rare mobs so you can find them and their loot

Replacement for the default UI's StaticPopup dialogs.

Give whispers an instant messenger feel.

A modular, lightweight and screen-estate saving grid of party/raid unit frames

Simple AceGUI3 dropdown item classes for font/statusbar/sound/etc.

Parses ToC and adds About panel to Interface options

The original source for where things are in Pandaria

Ackis Recipe List is an addon which will scan your trade skills and provide information on how to obtain recipes. It works fo...

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

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

A skinning engine for button-based add-ons.

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

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

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

Modular casting bar.