WowAce

Shows Status Bars that you can drag around and group up for your cooldowns

Says random things in chat when casting any spell or ability. Type "/ss help" for the user's manual.

Allows the user to preview and track their progress in the collection of various transmogrification appearance sets

FuBar_FarmerFu

Easily mail friends, guild members, alts and others

View bank, inventory, mail, equipped and guild bank contents from any character anywhere!

Keeps track of your current location.

Mutes various chat related annoyances while in capital cities and instances.

Reduces interface tedium by doing the little things for you.

FuBar_OutfitterFu

Adds a status to Grid for debuffs applied by Raid Bosses.

DKP system for all guilds in the Banana Republic.

Sphere

Search, filter and craft gems in the game!

CandyBar style cooldown display

Target Debuff monitor. Stacking aware, giving current and potential debuff status.

Provides the /in command for delayed execution.

Hitman

Library providing mappings between trade skill recipes, spells and created items

A Simple World of Warcraft Spam Filter!