WowAce

AddOn development framework

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

Callback handling Library, normally embedded inside other libraries

LibDataBroker-1.1

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

Library providing multi-column tooltips.

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

Library that handles chat output.

Universal Library Stub

Provides one or many informational windows with optional interactive widgets.