WowAce

Keeps track of current money and all your characters on one realm.

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

Dropdown library for Ace3 options, extensible to other options formats. Works ok.

item2phpBB

Gives a Smoother Quest Experience

A collection of useful (guild management) tools and utilities for smarter than average bears.

Dedicated to Lazybones of EU Khadgar who had the original idea as he can't find a damn thing in his bags. You're a great guy...

Cartographer_Treasure

Manages tracking of raid attendance, loot, and more.

LCDs for WoW

Simple oRA3 Maintank Target Frames, based on oUF

Hook extra menu to friend list, guild list and chat player

Add-on that shows which mounts can be farmed this week

Tracks the precise arrival & departure schedules of boats and Zeppelins around Azeroth and displays them on the Mini-Map and ...

ImprovedRWF

LDB data source for Tradeskill Cooldowns

ColaLight

Adds Scrolling Combat Text above your character

VitalWatch

Prints a message in your default chat frame when someone in your group gains an aura.