WowAce

AutoMagicly clicks though Daily Quests, and Turns them In.

Aura alarm.

Creates simple table controls for tabular text data.

Show item durability and quality in the character frame.

A simple combat log that displays events similar to SCT

Fires events whenever a raid member "fails".

Cryolysis 2

Enhances the default AddOns list.

Displays online friends.

Incubator

Shows simple Buttons for your Cooldowns :)

MiniPet, Always keep your little companion with you, based on the work of Carra.

Keeps track of your current location.

Collects Herbs, Mines, Gas Clouds and Fishing locations and adds them to the worldmap and minimap

XRS

A core for your informational plugins to plug into.

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

A blizzard group finder replacement

Database of item upgrade IDs

Adds mob patrol paths to your map.