WowAce

Collects and displays census information. This AddOn is licenced under the GNU GPL, see GPL.txt for details.

FuBar_RecapFu

Library for tracking cooldowns of other players

ORLIC

BigTrouble

Communicates with guild members for their positions on the world map

A noble spirit embiggens the smallest player arrow.

CombatAnnounce

Damnation

Reminds you to Life Tap and Dark Pact

Keeps track of honor, PvP statistics, BG Marks, and Arena points.

Enables you to see Chinese, Japanese and other languages in game

HealComm-2.0

View all your Auctions on any DataBroker display.

Library to help with querying unit talents.

Audible Alerts for self-gain, self-lost, any-gain, all-lost of statuses.

Adds icons to the configuration menu for all standard Grid indicators.

PreferredItems

Raid target control and instance shortcuts for Broker

Objective Tracker