WowAce

GratuityLib

Posts a BigBrother-QuickCheck to the raid-channel when a readycheck is started

Capital Cities NPC Browser

item2phpBB

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

Splut

Flames anyone who lets his debuff expire on Malygos Phase 3

Display combo points for Arcane Blast debuffs

Records mail when visiting the mailbox to make keeping track of mail and expiration dates easy.

A library that maintains a cache of items and their types.

XML import library

Allows movement and scaling of class-specific resource displays

Invite lots of players in the raid browser for world boss groups

SwapMagic

FuBar_RegenFu

LDB data source displaying rested XP for whole account

Cryolysis

Mob respawn timers

FuBar_AnkhTimerFu

Shows the spec of people around you in the tooltip.