WowAce

A UI for searching the guild roster.

Save and send chat messages to many channels. Allows quick item and profession linking within your messages.

Mutes various chat related annoyances while in capital cities and instances.

Displays online guild mates.

Inspects all members of raid and saves in database, as well as lists people's dkp values

MorgDKP

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

Provides a quick display for the LFG Call to Arms

Switch macro depending on zones or BigWigs boss modules.

A customizable casting bar replacement for TBC Classic & Classic WoW

An addon to assist with organizing healing in a raid set up.

Add-on that allows you to setup and quickly switch between different profiles of your action bars

Keeps account of attendance and loot for raids, parties, bgs, arenas and solo for questing.

View an image of your guild vault from anywhere.

Co-ordinated targetless Party and Raid wipe recovery. Evolved

A Collection of Automations and Interface Tweaks.

A replacement tradeskill window

In-game EPGP guild helper, supports standby, main/alt shared pools, minEP, offpecGP. Fixed price list with progress multiplier.

CT_RaidAssist style raid frames

Adds predicted lists for spells while the user types