WowAce

Toggle Windowed Mode with click or keybind.

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

Shows the price of a single item in the Auction House.

FuBar_AlchemyFu

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

Bidder for DKP points. Usable as standalone bidder, or with DKP - Manager to manage points.

FuBar_AbramsFu

API for AceConfig-3.0

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

Track any items you want in a tooltip

Information display for Hunters.

HazLoot

Collects, analyzes and presents information about the virtual economy.

LDB display for Oak Interrupts Broker

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

Display an arrow that points to a raid/party member anchored to raid frames

Adds a Friendly Fire mode and data collection to Skada.

Calendar improvements

Simple, light-weight, LDB-enabled timer that tracks how long you spend in combat

Tracks whispers and conversations