WowAce

Eliminates the spam from the chatframe and sums it up in a broker plugin.

BigWigs_HealbotAssist

Keeps track of resurrection spells cast in a group

GatherHud for GatherMate2 with Routes support

Centralised management hub for small tweak, interface and utility addons.

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

Provides access to all teleporting spells and items on right click of minimap button.

Plays amusing sounds whenever you skin a mob

A frame with a text that gives you the amount absorb left on target, or in TankMode absorbs left on yourself.

Stitch-1.1

Allows raid leaders to view information on raid or guild member equipment information

Dedicated to Lazybones of EU Khadgar who had the original idea as he can't find a damn thing in his bags. You're a great guy...

Reminds you if your flask/elixir and/or Augmentation Rune and/orfood buff is about to expire or has expired

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

oUF_HolySmurf

Uses linear regression and a log of hitpoint values to estimate how long a boss has left to die and reach execute range.

Tells you which blob to kill at the Yor'sahj encounter in Dragon Soul.

Shows optimal target to use various area healing spells

Adds aura indicators to unit frames

Mark My Words