WowAce

WQA helps you find world quest groups easily. Works after the 4/28 group finder changes.

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

VersionChecker

A library to help with localization of talent trees.

An auction house AddOn to make the life of each fence easier.

Show extra information about Jewels and Enchants in tooltips.

Ironi's Encounter Event Tracker

Adds party/raid role icons in useful places

Keeps track of space left in your bags.

Adds talent specialization role status to Grid.

Pins on the World Map for quests you have not completed yet

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

Highly-configurable shield / absorb tracker.

Fubar_ChannelWatchFu remade for Broker

Cartographer_Treasure

A simple interface for unitframe click casting.

Displays events from Calendar for upcoming week in tooltip.

Adds resurrection and soulstone status to Grid, using LibResComm-1.0.

A data broker display, that shows one block per plugin.

Some handy events that should exist in the default UI