WowAce

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

Assister

FuBar_BattlegroundFu

Friends & Guild Data Broker plugin.

Provides a quick display for the LFG Call to Arms

Manages tracking of raid attendance, loot, and more.

DeuceCommander

Sphere

Generates and posts random Chuck Norris facts to a specified chat medium.

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

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

A jukebox for playing wow embedded music.

A library to help with localization of talent trees.

FuBar_AmmoFu

Automatically leaves the global channels when inside an instance/raid and restores them when exited.

TradeStop

Check the consumable usage of your raid

Combat log evolved.

Smooth group roll frames

Various libraries based on LCD4Linux, offering users lower-level UI customizations.