WowAce

Custom minimalistic nameplates

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

Adds tier set number and difficulty indicators to tier item tooltips.

Creates parameterized AceGUI-3.0 editboxes with autocompletion

Notifies you of new calendar event invites and reminds of upcoming events on all characters and realms

A noble spirit embiggens the smallest player arrow.

A simple addon that warns you if your pet isn't attacking while you're in combat.

KeepItCool

FuBar_MonkeyQuestFu

UnitActionBars2

TGuildFrame

DKP ingame management

Unit testing framework for World of Warcraft addon development.

BagPress

Make noise when the servr is going to restart

A raid buff tracker

Shows at-a-glance what raid buffs/debuffs you have.

PiraPlex

Simple Bars for your Shaman's weapon buffs and shield spells.

FuBar_PetFu