WowAce

A library to help with localization of talent trees.

Improve your barbershop experience with appearance profiles!

Tracking and ranking of dps/hps in a guild.

Simple display and management of Away / AFK / Busy / DND status via broker or minimap

Keeps track of honor, PvP statistics, BG Marks, and Arena points.

Privacy2

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

Simplifies GDKP bidding processes

Display the global cooldown around your cursor. (+ other stuff)

A Data Broker display for combat statistics.

RaidSpy

Adds options to create customized layouts from within grid.

ShadowGreenLight helps you decide if recasting SWP/Corruption is worthwhile

FuBar_AbramsFu

Shows learned recipes of all characters.

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

MainAssist

Make it easy to explain bosses in Raids.

Allows you to prevent addons from sending and receiving messages.

Raid level alternative player power warning (Atramedes, Cho'gall, Lord Rhyolith)