WowAce

Creates and manages secure Action Buttons

Inserts some media into LibSharedMedia's storage.

Displays online guild mates.

Displays online friends.

Shows your standings with the factions.

Helps you keep track of your experience.

Mutes various chat related annoyances while in capital cities and instances.

Changes the look of the default UI

Show what quests have changed

Allows you to view all items from all your characters on the same account, when-ever and where-ever you want.

Makes the default frames moveable via simple drag and drop

Manages social information with a focus on main-alt associations.

Set and manage character notes that are displayed in unit tooltips and /who results.

Automatically turns on the combat log for selected instances

Food/water macro generator

Automatically enables or disables combat logging based on location.

Redirect character errors, system messages and information messages.

Library that handles chat output.

A UI for searching the guild roster.

A fancy LDB reputation display, show faction reputation and reputation change history