WowAce

Displays the time until the next battle and more.

Makes grid QuickHealth aware

A Perl layout with oUF.

FuBar_CombatTimeFu

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

Displays info about who rolled Need/Greed/Pass on items that are currently rolled for

pMutilate

Ignore more than 49 people, autoshared between your alts

Avion

Library to provide non-explicit cooldown tracking and callbacks.

Keeps track of honor, PvP statistics, BG Marks, and Arena points.

Simple money display for LDB

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

GirlFriend

Library to aid in the classification of Mounts

Library to help with querying unit talents.

Allows combined aura detection. motw + gotw, all 4 mage int buffs, etc. in one status.

Gives a score for your kit allowing easy comparison with others, also colour codes kit based on appropriateness for your level.

Taggle

Database of FlightMaster locations for HandyNotes