WowAce

VitalWatch

StarVisuals displays various data visualizations

Adds your damage to Scrolling Combat Text

A jukebox for playing wow embedded music.

HealComm-2.0

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

Rep2 displays a message, which shows how much reputation you gained, and how much is needed until the next standing.

A Mount and Companion manager

Assister

Tracks profession specific cooldowns and items across all your characters

Show extra information about Jewels and Enchants in tooltips.

Manages tracking of raid attendance, loot, and more.

FuBar_ItemDBFu

TabletLib

Provides data about all artifacts in the player's possession.

Inventory and bank organizer.

Niagara

This will keep track of how much you have paid per item in your inventory. Only one of (Auctionator, Auctioneer, AuctionLite,...

Combat log evolved.

KillingSpree