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

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

Callback handling Library, normally embedded inside other libraries

Handy notes for your maps

UIFrameFlash to Animation conversion library for Floating Chat Frame functions.

Compression and Decompression library

Simple and Advanced combined - Bartender4 ActionBar AddOn

Timer bars with that extra sweetness.

LibDataBroker-1.1

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

Grabs bugs for the bug sack.

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

Toss those bugs inna sack.

Afflictions display and cleaning for solo, group and raid with advanced filtering and priority system.

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

Adds spec switching support to individual AceDB-3.0 databases.

Displays additional information for Mythic Keystone dungeons