WowAce

Create panels for customizing your UI, sucessor to eePanels

Sells all junk in your inventory at once.

Shows you a much bigger icon selection frame

Libra

Am I locked out? - Displays all RaidIDs for all chars

Unit frame addon using Ace3.

Library that tracks incoming heals

Configure triggers to send messages to your raid team such as timers, rotations, and health/power based triggers. Raid smarter not harder.

Prat

Calculates and shows your TankPoints in the PaperDall Frame.

Show item durability and quality in the character frame.

Database of important locations for HandyNotes

A library to provide a markup syntax

Violation

Tooltip of awesomeness. Moo. It'll graze your pasture.

LibItemInfo-1.0

Rebuff yourself with the mousewheel.

Provides access to all Portal and Teleport spells on right click of one button.

Babble-2.2

A library to provide unit-oriented tags to LibDogTag-3.0