WowAce

Group interrupt cooldown tracking.

A menu with useful searches for Inventorian

A library to provide tools for formatting money and time.

NShakedown

Improved Quest Tracker

LDB Broker launcher for HealBot

Tells you which blob to kill at the Yor'sahj encounter in Dragon Soul.

Minimap tweaking module for TweakHub.

Visual Raid Cooldown Tracking

QR Code builder library

Shared handling of media data (fonts, sounds, textures, ...) between addons.

LibFuBarPlugin-3.0

Surfaces

Light-weight enhanced casting bars

Reminds you if your flask/elixir and/or Augmentation Rune and/orfood buff is about to expire or has expired

Broker launcher that switches specializations when clicked. Also hides spell learned spam.

Auto sizes frame layout depending on group/raid size or predefined zone data

BigTrouble

Combine

A simple addon that warns you if your pet isn't attacking while you're in combat.