WowAce

Compression and Decompression library

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

Grabs bugs for the bug sack.

Toss those bugs inna sack.

Parses ToC and adds About panel to Interface options

A library to help with localization of in-game subzone names.

Does stuff for sachmo

Provides one or many frames for dumping text into.

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

Creates simple table controls for tabular text data.

OneCore is the centralized code shared between the OneBag Suite

Tracks SendAddonMessage Spam

PT3Browser

Mutt (Macro Update Target Tool) provides slash-commands that can patch the predefined targets in your macros.

Show what quests have changed

Ironi's Encounter Event Tracker

A simple slash-command-based addon for querying item information from the Blizzard servers via ItemIDs and SpellIDs.

FuBar_UIReloadFu

FuBar_LoadLODFu

For Developers (of Addons which uses LibWho-2.0): show queues and queries in realtime