WowAce

Plays amusing sounds whenever you skin a mob

Lists and/or reminds people missing flasks or food buffs at every ready check.

A simple, zero config, trash item seller

aX_RaidStatus

Skip the gossip and select the normal NPC action

A module that lets you find out what today's dailies are without having to visit the quest givers.

Notifies you of new calendar event invites and reminds of upcoming events on all characters and realms

A FPS Data Broker plugin.

CharScanner scans Basic Character Data, Talent Specifications, Equipment, PvE/PvP Achievements, PvE Boss Kill Statistics and ...

Keeps track of people who have recently sent you messages.

Plays Overwatch sounds

A seperate focus bar, with focus gain prediction and rotation forecast.

This addon helps with daily quests.

Adds a confirmation dialog when crafting Bind-On-Pickup trade skill items

Small addon to copy chat lines.

Provides access to all teleporting spells and items on right click of minimap button.

FuBar_ExitFu

Provides the the health and target of by an unit targeted mob (meant to be used for tanks).

ImprovedRWF

rSelfCast