WowAce

A 'channeling spell'-tracking addon for Affliction Warlocks. Drain Soul, Drain Life/Harvest Life and Malefic Grasp.

Good looking, smoothy and helpful nameplates

Replacement for the default minimap.

Automatically sells low quality gray items and selected white items to the vendor.

Insanity resource tracker for shadow priests.

Announces ooze kill instructions during the Yor'sajh encounter in Dragon Soul. Highly customizable with numerous helpful feat...

MorgBid

Chat frame tweaking module for TweakHub.

KTMCPUManager

AuctionSort

Persists collapsed state of headers across wow sessions.

FuBar_jabberFu

Keeps tracks of /rolls.

ag_Pimpster

Assistance for the Ra-den encounter. (Unstable Vita order, ball kill order)

Assist you with faction transfers letting you know which mounts, spells, etc you have and what they will be swapped to.

Tracks interrupts

Mute error messages of N next spell cast.

RefillRemind

Adds pipes which can control arbitary other statuses (like toggle status on key or "in combat"-state).