WowAce

FuBar_RecZone

Check the quality of wild battle pets

Mutt (Macro Update Target Tool) provides slash-commands that can patch the predefined targets in your macros.

FuBar_FarmerFu

Shows skills in a tooltip and allows them to be used.

Adds predicted lists for spells while the user types

Display Garrison missons for all Characters

DKP system for all guilds in the Banana Republic.

Add-on that allows you to setup and quickly switch between different profiles of your action bars

Adds a button to undress the model in the Dressing room.

RootsBidder

LDB data source for Tradeskill Cooldowns

A library to provide a clean dropdown menu interface.

A FuBar plugin for Converge Guild Officers.

TabletLib

Adds unreal tournament style sounds to PvP encounters.

Keeps track of space left in your bags.

Keeps track of your current location.

Keeps track of time played and rested XP across your characters.

An auction house AddOn to make the life of each fence easier.