WowAce

Show a bar indicating the unit's Soul Shard count.

A menu with useful searches for Inventorian

Armored man and paper doll durability modifier

My plugins for KuiNameplates

AllYouCanEat shows information about the following statistics: beverages, foods, bandage types, potions, elixirs and flasks.

Displays oRA3 main tanks.

Add-on that shows in a unit tooltip window a number of killed mobs of the same kind

Reputation Statistics - Gained, Needed, Rep/Hr, Session Time, etc.

Adds AFK status to Grid frames.

Destruction Warlock priority module for clcInfo -- Maighurl

Shows guild and system message of the day only if either one of them has changed since the last login.

Unit testing framework for World of Warcraft addon development.

A data broker plugin showing your longest fight and your current fight time.

Aggro Warning System for Parties and Raids.

Congratulate people when they ding

Improved Mailbox

Adds icons to the configuration menu for all standard Grid indicators.

Checklist2

Resizes Blizzard raid frames, and adds additional options.

Shows all the targets in the raid