WowAce

PoisonSwapper automatically manages weapon swapping for maximum DPS

Adds Blizzard, oRA2, oRA3, CT_RA MainTank or Dungeon Finder Tank icon (shield or MT, 1, 2 ... 10) or text (MT or MT1, MT2 ......

API for AceConfig-3.0

Lexan

Raid assignments planner

Announce which globule to kill during the Yor'sahj the Unsleeping encounter.

BetterOutbox

Pop a chatframe warning about guild battle standard when boss health reaches 30%

Automatically sells low quality gray items to the vendor.

Provides data about all artifacts in the player's possession.

MobHealth3_BlizzardFrames

Shows a countdown bar for the duration of auras (e.g. HoTs, DoTs)

Encodes and Decodes between Lua tables and JSON/CSV.

Try to keep them thar pets wrangled

A library that maintains a cache of items and their types.

Adds notes to item tooltips

Toolbox-1.0

Simple font replacement

FuBar_WaypointsFu

Notifies you when you get aggro.