WowAce

Displays an alert whenever you loot an item for the first time.

SmartQueue

Saves contents of your guild bank and sends/receives updates over the addon channel

AspectsBar

ClosetGnome_Mount

Show extra information about Jewels and Enchants in tooltips.

Shows current/dot cast haste values

A library to help with localization of Archeology dig sites

Makes those pesky garrison animations go away.

Simple library that handles multiple levels of logging.

Fancy up the PlayerPowerBarAlt frame

Raid level alternative player power warning (Atramedes, Cho'gall, Lord Rhyolith)

Allows you to create icons, which can be customized greatly by user's input. CiR is more than just the usual cooldown tracker.

Group interrupt cooldown tracking.

Show coordinates on minimap

Provides the ability to suppress specific spellcasts like "Deaden" from your casting bars.

GetInLine

ChatAssist2

Augmented Virtual Reality. Draw and add markers in the 3d world.

A Mount and Companion manager