WowAce

Heal and decurse by clicking on customizable raid/party unit frames

Posts a BigBrother-QuickCheck to the raid-channel when a readycheck is started

FuBar_AbramsFu

Collects, analyzes and presents information about the virtual economy.

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

Makes the message dialog movable

Scans your Equipment for cumulative item bonuses and sums them up.

Adds aura indicators to unit frames

Desesperated announcing to clearly show the skillings of act inplay.

MountUp

Save and load macros.

PerfectTargets

Color manipulation library.

A library for PvP and Battlegrounds

Adds four icon indicators to Grid (top, bottom, left and right).

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

FuBar_AmmoFu

Tooltip of socials button will now show which friends are online

Saves contents of your guild bank and sends/receives updates over the addon channel

Announces Mage Spells in chat.