WowAce

New/Old BG indicator, Join by ID, Quick Leave Queue, etc.

LibDogTag-Items-3.0

Mark Worshipping player during the Cho'gall encounter

Simplistic addon to load Talented on demand

QuestLongList

Adds a report button, segment button and report gui to Skada Bar Displays

Adds spell-based range checking to Grid, and the ability to check multiple ranges.

FuBar_IceHudFu

Printing unknown AddonPrefixes to your chat

Mute all sounds except boss emotes and addon sounds

Notifies your chat frame of who has cast their Toy Train

Tells your party members when you interrupt stuff, or fail to do so.

Warn players about a specific aura (buff/debuff) at a specific stack via whispers and icons.

KeyBoundExtra-1.0

Automatically calls ForecQuit() right before you are AFK-disconnected to quit wow instead of going to the character selection...

Data Broker plugin showing your pitch and speed.

Shortens gold output in your chatframes by using the icons instead of names.

GridStatusKalecgos

A simple buff remover.

OneBank