WowAce

Adds Blizzard, oRA2, oRA3, CT_RA MainTank or Dungeon Finder Tank icon (shield or MT, 1, 2 ... 10) or text (MT or MT1, MT2 ......

WoWonid

Saves Auction House search queries.

Provides bang-whispers for your professions.

Simple Bars for your Shaman's weapon buffs and shield spells.

LDB data source for reputation monitoring.

DaPortrait

FuBar_EpicCountFu

Show who is targeted by at least one enemy, and the casting progress of the incoming spell.

Show a rough range indicator

Improvements to the standard Blizzard Eclipse bar for balance druids. Use /ebp for the config screen.

Tank statistics Data Broker plugin.

GonffBar

Pet Battle Lite Frame

Library to provide non-explicit cooldown tracking and callbacks.

Shared handling of media data (fonts, sounds, textures, ...) between addons.

Makes the message dialog movable

A total number of quests Data Broker plugin.

Notifies you when you get aggro.

Customize the PlayerPowerBarAlt display