WowAce

Blocks all whispers except from people in your guild and friends list.

Check for flask/food buffs

Automatically promotes a group of players to calendar event moderators.

Locks the chat window tabs to prevent accidental undocking via mouse drag

Tattles to your default chat frame who has used their taunt nearby

Mage Portal Whisper: whisper custom message when someone asked for a portal but youre busy.

Provides a virtual keyboard of extended-ASCII and Unicode characters which can be inserted into text areas.

RareCaller

Notifies your chat frame of who has cast their Toy Train

AutoGratz

AMPFu

AutomaticLFG

Teknicolor_tab

FuBar_ChannelwatchFu

LogSaver

Displays current LFG Tool times and warns when ready

Track friends / enemies in a convienent window, with optional logging

Fully automated Torment handling for Baleroc.

Color player names in chat by their corresponding raid class colors

An Addon to make give stock messages based on location or target.