WowAce

Allows you to browse your clients database

mHud

Piece of mind by being one with your class.

FuBar_uFriends

Tracks profession specific cooldowns and items across all your characters

Enables you to see Chinese, Japanese and other languages in game

quick quest turnin and acceptance with a shared keybind

FuBar_WhisperFu

A tool to appraise, estimate, or judge your equipment against the equipment of others.

Utility library with shared functions and data for various addons by NeoTron.

Timerbar embeddable library

DreamChat

Taggle

Disease Tracker for Death Knights.

FuBar_AEmotesFU

FelwoodFarmer

FuBar_FactionItemsFu

InstanceMaps

Highly-configurable shield / absorb tracker.

Reno is a slash-command that can patch predefined options in a macro to change which actions will be chosen.