WowAce

Tracks vulnerability debuffs on multiple mobs

Visualises healing.

Additional information about player spells.

A library to provide information about zones and instances.

XRS

Queing of /who and SendWho() queries and a much better interface (see docs), with gurantee to be executed & callback.

Automated smart raid marking to speed up trash clearing in instance runs

A collection of Rogue modules.

Configure triggers to send messages to your raid team such as timers, rotations, and health/power based triggers. Raid smarter not harder.

provides enchanters with a decent tool for managing their profession

Shows skills in a tooltip and allow them to be used. Also keeps track of Cooldowns.

Database of item upgrade IDs

Cryolysis 2

manipulate the minimap in numerous ways; move, scale, skin.

Textures for Stop Motion

Shows you the radius of your totems.

Unit frame addon using Ace3.

All in one buffing mod for all classes. Paladin buff generated assignments based on Paladin capabilities and raid member sub-...

Keeps track of HoTs, DoTs, Buffs and Cooldowns. With audio and text alerts to refresh them.

Displays Pet Info for Hunters and Warlocks. Also keeps track of Stables and Pet and Demon skills.