WowAce

Adds achievement reminders to BigWigs

Provides data about all artifacts in the player's possession.

adds navigation buttons to Encounter Journal

Hemlock

Shows your standings with the factions.

Tells you which blob to kill at the Yor'sahj encounter in Dragon Soul.

Fixes UI bugs

First Aid data for Ackis Recipe List.

Utility library with shared functions and data for various addons by NeoTron.

Automatically and immediately cancels all in-game cinematics and movies

LDB data source for currency flow

Some handy events that should exist in the default UI

Adds Outfitter set filters to AdiBags.

Keeps track of durability and pops up a dialog to repair when you go to a vendor who can.

Stores a browsable database of spells that mobs cast

Accelerates Camera Zooming

Auto and random summon highly customizable for your pets and mounts, with Data Broker support.

Provides a quick display for the LFG Call to Arms

Animated target indicator

Manages tracking of raid attendance, loot, and more.