WowAce

Adds cooldown timers to your trinket procs

Artifact power bar support for oUF layouts

Provides training reminders to help decipher the Blizzard Spell Alerts.

Spyglass

Puts a timer in /yell when you get Unbound Plague during the Heroic Professor Putricide encounter

Fires events whenever a raid member "fails".

WF3sec

VersionChecker

Welfare Epics

Meeuuuh

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

Displays the time until the next battle and more.

lern2count adds ABinfo castcounts to spell and actions. It has a builtin reagentcount too.

LDB data source displaying character stats

DogChow

Checklist and notes addon.

Piece of mind by being one with your class.

Hook extra menu to friend list, guild list and chat player

Spawns toasts for looted items, money, and currencies.

View all your Auctions on any DataBroker display.