WowAce

Collects, analyzes and presents information about the virtual economy.

Allows you to prevent addons from sending and receiving messages.

Prints a message in your default chat frame when someone in your group gains an aura.

QuestAnnouncer

Heal and decurse by clicking on customizable raid/party unit frames

Displays classes and specialisation dependent stat priorities provided by icy-veins.com

Group interrupt cooldown tracking.

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

A library to return spell duration and debuff type of a spellID.

Cancellation

Allows the user to customize the the tooltip with lua-scripts

Makes your item stats shine!

A tool to appraise, estimate, or judge your equipment against the equipment of others.

Buffalo2

Prompts for canceling of pet battles if no rare pet is found in the opposing team.

LDB Broker launcher for HealBot

Shows your standings with the factions.

Battleground Timers in a HUD around the Blizzard BG status

A threat main view module for Recount

Hook extra menu to friend list, guild list and chat player