WowAce

CT_RaidAssist style raid frames

Dynamic mount macro generator

Adds your name to chat messages

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

Displays information about the current zone on the World Map

ItemPriceTooltip

Barks at you when you target a crowd-controlled unit

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

Adds a highlight border to items in your MogIt Wishlist, making them easier to see.

Visualises healing.

Utility library with shared functions and data for various addons by NeoTron.

FlexBar2

Checks your gear before bosses and yells at you if you're an idiot

Shows class colors on player nameplates and names

Provides a quick display for the LFG Call to Arms

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

Display Garrison missons for all Characters

A library to help with localization of talent trees.

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

Show what quests have changed