WowAce

Shows missing buffs and handles welfare and deluxe buffs as one (motw/gotw, blessings, etc.). This lets you see when you nee...

Resizes Blizzard raid frames, and adds additional options.

Modifies the inbox into a scrollable inbox, including open all options

Enhances the Equipment Manager to let you control the helm/cloak visibility for each set.

Flames anyone who lets his debuff expire on Malygos Phase 3

Shows the price of a single item in the Auction House.

A library to help with localization of Archaeology artifacts

GPriceEach

FruityLoots

Simple font replacement

LibRockComm-1.0

A simple addon that warns you if your pet isn't attacking while you're in combat.

ElfReloaded

Adds easier gear switching to FuBar.

BigWigs_RazuviousAssistant

Displays how much total honor you have from all sources.

An attempt at giving a complete overview of Arena battles

Keeps track of gold and cash flow across multiple characters

Adds a third text indicator to Grid.

A lib to manage action bar and timers