WowAce

Plays sound when a ready check, LFG queue, battleground queue, or world battleground queue pops even if you have sounds turne...

A data broker display, that shows one block per plugin.

GotWood

Shows mana usage as a percentage in a spells tooltip.

Displays online guild mates.

Deathknight Rune Display

Keeps track of durability and pops up a dialog to repair when you go to a vendor who can.

Show all the orbs for triggering Kosumoth

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

Displays Instance Maps

View an image of your guild vault from anywhere.

Healer gear benchmark

Mutes various chat related annoyances while in capital cities and instances.

A core for your informational plugins to plug into.

Smart mount randomization on a button! Empty coconut halves not included.

Automates bites during the Blood-Queen Lana'thel encounter in Icecrown Citadel

Checks your gear before bosses and yells at you if you're an idiot

LDB data source for currency flow

Incubator

Shows skills in a tooltip and allows them to be used.