WowAce

Allows addons to easily create a lightweight minimap icon as an alternative to heavier LDB displays.

AddOn development framework

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

Universal Library Stub

Callback handling Library, normally embedded inside other libraries

Compression and Decompression library

UIFrameFlash to Animation conversion library for Floating Chat Frame functions.

LibDataBroker-1.1

Timer bars with that extra sweetness.

A powerful, comprehensive utilty for displaying graphics and information based on buffs, debuffs, and other triggers.

Enables AceGUI-3.0 widgets for the 5 basic SharedMedia-3.0 types

HereBeDragons is a data API for the World of Warcraft mapping system

A Replacement for standard UIDropDownMenu

Adds spec switching support to individual AceDB-3.0 databases.

A library allowing for easy creation of graphs

Library providing multi-column tooltips.

Keeps track of group members and keeps an up-to-date cache of their specialization and talents.

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

Library that handles chat output.

Database of item upgrade IDs