WowAce

Displays Currencies as a Data Broker source

MD5Lib

Make the unit frame fade if out of range.

Sets you to DND when you fight a boss, and some other crap.

Reputation

Reports the total threat on a mob at the end of combat.

LDB display addon with one Blockoblock per plugin.

Adds a third text indicator to Grid.

KeepItCool

Provides the the health and target of by an unit targeted mob (meant to be used for tanks).

Manages the SavedVariables of your addon with a layered hierarchy of settings.

SCT_Cooldowns

User-configurable protection for your inventory. Automatically buys back mistakenly sold items.

Simple and rich Death Knight rune customizations

MobHealth3_BlizzardFrames

Adds Blizzard, oRA2, oRA3, CT_RA MainTank or Dungeon Finder Tank icon (shield or MT, 1, 2 ... 10) or text (MT or MT1, MT2 ......

LibAvion-2.0

FuBar_GrindFu

Keeps tracks of /rolls.

Adds notes to item tooltips