WowAce

Library to aid in the classification of Mounts

HazLoot

Eliminates the spam from the chatframe and sums it up in a broker plugin.

SurgeonGeneral Listen CLient

KC_Items

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

Fancy up the ExtraActionButton frame

NabuFiveSec

FuBar_MiniClockFu

Provides access to all teleporting spells and items on right click of minimap button.

Test whether the player can really dispell a buff or debuff, given its talents.

Dedicated to Lazybones of EU Khadgar who had the original idea as he can't find a damn thing in his bags. You're a great guy...

A Data Broker add-on for quickly switching your specialization with gear set and loot specialization.

Automatically invites player from templates.

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

Powerleveling guide framework

ChatHighlighter

Allows for easy congratulating when someone earns an achievement.

A fully featured library tracking all ongoing absorb effects

Constructs a SimC export string for an item without equipping it