WowAce

BetterOutbox

DungeonCrawler

Lists and/or reminds people missing flasks or food buffs at every ready check.

BangItHarder

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

Adds aura indicators to unit frames

Adds easier gear switching to FuBar.

GraphLib

EnvenomX

Displays oRA3 main tanks.

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

A lib to manage action bar and timers

Target assistance by automatic rewriting of macros

A raid buff tracker

OneBag is a replacement for the default game bags that combines all the bags into one frame.

For Developers (of Addons which uses LibWho-2.0): show queues and queries in realtime

Allows you to loot BoP items without prompting when not in a group or raid

MessageEvent

DynRepBar

Display who crossed the charges on Thaddius