WowAce

Relays item drops to your guild chat.

KeyProfiler

Displays a grid of guild ranks versus permissions.

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

FuBar_TinyPadFu

Calendar improvements

Replaces the SkadaAbsorbs module with one that acts more like SkadaHealing, but includes shields.

Displays a reliable cooldown timer for the Shaman Ascendance ability

PreferredItems

Modifies the inbox into a scrollable inbox, including open all options

lern2count adds ABinfo castcounts to spell and actions. It has a builtin reagentcount too.

Checklist and notes addon.

A frame designed for each specialization of druid's watching their main power and important buffs/debuffs

AntiInvite

View party member quest logs

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

FuBar_RaidBuffFu

Display combo points for Arcane Blast debuffs

Helper functions used by my addons, feel free to use them in your addon too

LCDs for WoW