WowAce

Never miss an Brain Freeze, Hot Streak or Missle Barrage proc

LDB data feed plugin designed to display various statistics derived from the Recount addon.

ag_Pimpster

PvP Trinket Tracker

MobHealth3_BlizzardFrames

Broker_Durability

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

Darkness

AssignAssist

Calendar improvements

MaxStats

allows you to flip cards of omens by spinning your mouse wheel; counts cards opened and money earned per session and lifetime

Status indicator that shows if a unit is hostile (probably mindcontrolled)

Automatically switch the hunter tracking based on the selected target

Fizzlebag

Automatically calls ForecQuit() right before you are AFK-disconnected to quit wow instead of going to the character selection...

Reports in the Default Chat Frame how many people does not have Well Fed effect, and who are they

An Addon to make give stock messages based on location or target.

SnapshotBar

SummoningBar