WowAce

Displays bars depending on your professions

Reforges stuff

Draws 3D portraits for main units that can be moved or resized at will.

Spawns toasts for looted items, money, and currencies.

LibDogTag-2.0

A simple range indicator for optimizing Halo damage.

Adds tier set number and difficulty indicators to tier item tooltips.

An extra set of 11x3 buttons, integrated into the default action bar.

A death track window for Recount

pDebuffList

Note + rep tracking for players, with guild data sharing.

Shows the spec of people around you in the tooltip.

Timerbar embeddable library

Needja Tracker

Mark My Words

NRT_EPGP

GetInLine

Overlays Archaology digsite icons on the flightmap

AllYouCanEat shows information about the following statistics: beverages, foods, bandage types, potions, elixirs and flasks.

A helper addon for the achievements "Let It Snow", "Fistful of Love", "Shake Your Bunny-Maker", "Check Your Head", and "Turkey Lurkey"