WowAce

Does a /who search of multiple dungeons.

Library to help with querying unit talents.

Converts incoming ALL CAPS CHAT into lowercase text.

Debuff Monitor: A Powerful & Configurable Raiding Tool

oUF element for highlighting debuffs that are dispellable by the player

HealComm-2.0

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

Assister

NCHide

Repairs your items automatically upon visiting a vendor.

KillingSpree

ComboSounds

Automatic tracking of the current target's creature type. For the discerning PvE hunter.

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

BankAccountant

Dynamically atering layout in raid environment (Tanks, Ranged / Melee DPS, Healers)

Library supporting plug in filters.

SacredBuff_Mounts

Creates a broker plugin for all your broker launchers

SliceWatcher