WowAce

Smooth group roll frames

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

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

Heads Up Display with Player and Target Info

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

Fires events whenever a raid member "fails".

Adds your name to chat messages

Tracking and ranking of dps/hps in a guild.

WQA helps you find world quest groups easily. Works after the 4/28 group finder changes.

Show extra information about Jewels and Enchants in tooltips.

Reminds you if your flask/elixir and/or Augmentation Rune and/orfood buff is about to expire or has expired

FuBar_TransporterFu

Toggles player names.

Sphere

Assister

Helps you decide which ability to use next according to priority you set

Displays the time remaining before your (temporary) pet is dismissed.

Highly-configurable shield / absorb tracker.

mHud

Collects, analyzes and presents information about the virtual economy.