WowAce

Manages social information with a focus on main-alt associations.

Says random things in chat when casting any spell or ability. Type "/ss help" for the user's manual.

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

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

Adds your name to chat messages

Loudmouth

Adds party/raid role icons in useful places

Displays online friends.

Automatically leaves the global channels when inside an instance/raid and restores them when exited.

Creates virtual cyphered chat channels over guild addon communication channel.

Tracks SendAddonMessage Spam

Prat

Displays friend notes in unit tooltips, at logon, and in /who results.

Toggles WoW to the forground on events.

Improved Quest Tracker

A Collection of Automations and Interface Tweaks.

Generates and posts random Chuck Norris facts to a specified chat medium.

Shows Chat as Combat Text

Plays sound when a ready check, LFG queue, battleground queue, or world battleground queue pops even if you have sounds turne...

Suppresses chat messages from damage meters and provides single chat-link damage statistics in a popup.