WowAce

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

DKP system for all guilds in the Banana Republic.

Constructs a SimC export string for an item without equipping it

Good looking, smoothy and helpful nameplates

Adds filters for Legion items to AdiBags

Tools for MultiBoxers or Group questing/leveling

Allows for easy congratulating when someone earns an achievement.

Tracks vulnerability debuffs on multiple mobs

Speed plugin for any DataBroker display.

Necronomicon2

Fixes strata bugs in UI windows

A library to help with localization of classes.

AceBuffGroups

Better quest log and tracker

Automatically sells low quality gray items and selected white items to the vendor.

Displays online guild mates.

Shows you the radius of your totems.

Provides LibPeriodicTable-3.1 item filters for AdiBags.

FuBar_WindFuryFu

Allows you to prevent addons from sending and receiving messages.