WowAce

Building a Better Mailbox

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

Uses guild notes to add alts' main names to chat windows and other places

BeneCast 10

Interacts with TinyTip modules, either integrated or standalone, to provide extra centralized functionality. Required for an ...

WhiteboardNG

Control screenshot format and quality via FuBar

Stable

Enable/Disable addons for your character in game

Auto sizes frame layout depending on group/raid size or predefined zone data

adds navigation buttons to Encounter Journal

Saves contents of your guild bank and sends/receives updates over the addon channel

Raid Cooldowns

Keeps track of healing spells cast by everyone in a group.

FuBar_MonkeyQuestFu

Cartographer_nnTrainers

Check the quality of wild battle pets

InstanceMaps

Tracks your keystones

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