WowAce

A library to return spell duration and debuff type of a spellID.

AltClick an item in your bag to add it a mail, auction, or trade frame, and alt-click to buy a stack if reagents.

SRA

Modifies the inbox into a scrollable inbox, including open all options

Simple Spell Alert

What did you just loot?

trade history log, recent trade list by [email protected]

Keeps track of resurrection spells cast in a group

Light-weight enhanced casting bars

Augmented Virtual Reality. Draw and add markers in the 3d world.

Right-click on minimap blips to open a targeting menu (out of combat).

FuBar_AlchemyFu

Adds Name and Buyout Price sort columns to the auction house.

GearRating

Keeps track of healing spells cast by everyone in a group.

Handles the assignment, coordination, and announcement of many parts of the Lich King encounter in Icecrown Citadel.

Quest information

Displays bars depending on your professions

Cartographer_Mailboxes

A simplistic clock.