WowAce

Officially the original source for where things are in the Broken Isles, in HandyNotes

Officially the original source of knowledge of where things are in Draenor during Warlords, in HandyNotes

Library providing mappings between trade skill recipes, spells and created items

Automatically turns on the combat log for selected instances

Find five Ephemeral Crystals, get a pink hippogryph

A skinning engine for button-based add-ons.

Apathy skin for Masque.

Caith skin for Masque.

Cirque Skins for Masque

Entropy skins for Masque.

Gears skins for Masque.

Onyx skins for Masque.

LiteStep skins for Masque.

Serenity skins for Masque.

Custom widgets for AceGUI-3.0 and AceConfigDialog-3.0.

Should I send that recipe to my alt?

Show what quests have changed

A menu with useful searches for Inventorian

Show vignette icons sooner

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