WowAce

TrainingWheels

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

mHud_Threat

LD50_abar

BigTrouble

Collects and displays census information. This AddOn is licenced under the GNU GPL, see GPL.txt for details.

Sneakily inspect how much gold your mouseover target has made so far.

TipHookerLib

Spell overlay customization and spell state HUD.

Replacement for the default nameplates.

AbacusLib

Filters unimportant Buffs.

Ignore more than 49 people, autoshared between your alts

Holy Power, Shadow Orbs, Rogue Combo Points and Monk Chi.

Changes the nameplates range and disables clamping to screen

"Shows Call To Arms status in an LDB data provider."

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

Fancy up the PlayerPowerBarAlt frame

Shows a countdown bar for the duration of auras (e.g. HoTs, DoTs)

Marks the Balcony adds in the Horridon encounter