WowAce

Communicates with guild members for their positions on the world map

Cryolysis 3

Keeps track of people who have recently sent you messages.

Unit testing framework for World of Warcraft addon development.

Adds achievement reminders to BigWigs

PowerPoint goodness for your addon

Adds an Atlas button to FuBar.

FuBarPlugin-2.0

A lib to manage action bar and timers

A Coordinates Data Broker plugin.

BanzaiLib

A library that tells wether a item is a quest item or not (equipped or in bags)

Assistance for the Ra-den encounter. (Unstable Vita order, ball kill order)

Poppins

Shows the spec of people around you in the tooltip.

View all your Auctions on any DataBroker display.

Spy on your guild.

Shows attachment count in Inbox icon.

Tool for easy task assignments in raids.

Automatically sells low quality gray items to the vendor.