WowAce

Manages tracking of raid attendance, loot, and more.

Provide plenty of links

Detects specific CDs and spellcasts

tekProber

Attach diminishing return icons to unit frames.

Entropy skins for Masque.

SmartQueue

DogChow

Says random things in chat when casting any spell or ability. Type "/ss help" for the user's manual.

Enhances the default AddOns list.

Nihilum Raid Tracker, originally written for the EU guild Nihilum.

Textures for Stop Motion

Set and manage character notes that are displayed in unit tooltips and /who results.

Numen

An addon to assist with organizing healing in a raid set up.

NShakedown

Doublerightclick casting, autolure and sound enhancing

Omnibus

Sheppard

Shows ZoneInfo on the World Map in a perfectly cromulent fashion.