WowAce

A library that handles the basics of "window" style frames

GridStatusIncomingHeals

Customize the PlayerPowerBarAlt display

ItemRackFu

GearRating

Shows a money overview for your current realm in the tooltip on the money in your bags

Flames anyone who lets his debuff expire on Malygos Phase 3

Small addon to copy chat lines.

On login, displays changes to your guild since the last time you logged in.

Shows class colors on player nameplates and names

FuBar_RicoXPFu

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

KivinSpamGuard

Go quick, or go home!

ScoreSort

Show a rough range indicator

Show optimal path for artifact leveling

Shows the price of a single item in the Auction House.

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

Protractor