WowAce

AspectsBar

A jukebox for playing wow embedded music.

Angry Boss Reminders helps raiders switch to the proper talents, glyphs, and gear for each boss during a raid.

A threat main view module for Recount

RBM

Calculates incoming damage avoidance and mitigation

Reduces interface tedium by doing the little things for you.

Rewrite myBindings. An enhanced key bindings interface.

A customizable view of friends and guildmates.

Adds a button to the quest completion interface which allows you to auto equips selected quest Item after completion

Note + rep tracking for players, with guild data sharing.

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

Gives detailed descriptions of particular localities, as zones or instances, and provides optional TomTom integration.

OneBag is a replacement for the default game bags that combines all the bags into one frame.

Guilder brings common guild-raid tasks together in one convenient place.

Announces interrupts in the chat

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

Simplifies GDKP bidding processes

ItemBonusLib

Makes those pesky garrison animations go away.