WowAce

For Developers (of Addons which uses LibWho-2.0): show queues and queries in realtime

Zone text Data Broker plugin.

Automatically sells low quality gray items and selected white items to the vendor.

Monitors the combatlog identifying players from the oposite faction near you.

Fancy up the ExtraActionButton frame

Don't underestimate your little critters!

Speeds up triggering actions such as items or spells by triggering them on key/mouse down rather than release

Enhances the StackSplitFrame with numbered Buttons, a '1-Click Mode' and a 'Auto Split Mode'.

Add-on that shows which battle pets can be farmed this week

Visual Raid Cooldown Tracking

Allows the user to customize the the tooltip with lua-scripts

Adds 3 indicators to each side (top, bottom, left and right).

Emerge@Durotan-EU Raid Tracker

Sets you to DND when you fight a boss, and some other crap.

oUF element for highlighting debuffs that are dispellable by the player

Fixes UI bugs

InstanceMaps

Fancy up the PlayerPowerBarAlt frame

Instant PROC notification

Tooltip scanning library.