WowAce

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

Keeps track of time played and rested XP across your characters.

Parkour puzzles throughout the world.

Cartographer_ExtractGas

Ignore more than 49 people, autoshared between your alts

Makes grid QuickHealth aware

Rep2 displays a message, which shows how much reputation you gained, and how much is needed until the next standing.

Provides extended aura status settings.

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

Adds item values to chat messages.

A popup menu containing user-programmable scripts.

KC_Mobility

FuBar_GCInFu

Library to provide non-explicit cooldown tracking and callbacks.

Sneakily inspect how much gold your mouseover target has made so far.

Loot management tool

Prompts for canceling of pet battles if no rare pet is found in the opposing team.

A Perl layout with oUF.

GirlFriend

FuBar_TinyTipFu