WowAce

Am I locked out? - Displays all RaidIDs for all chars

Plugs classical world style fonts into LibSharedMedia-3.0

Add-on that shows which mounts can be farmed this week

Food/water macro generator

Database of item upgrade IDs

Find five Ephemeral Crystals, get a pink hippogryph

AddOn development framework

Show vignette icons sooner

mount and companion manager

A Friend-Enemy-Unit-Frame for battlegrounds.

Adds custom effects to your cursor.

Adirelle's unit frames, based on haste's oUF.

QuestLog

Kiwi Plates

Collects Herbs, Mines, Gas Clouds and Fishing locations and adds them to the worldmap and minimap

Wowhead Data dump for GatherMate

Dynamic mount macro generator

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

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

Configure triggers to send messages to your raid team such as timers, rotations, and health/power based triggers. Raid smarter not harder.