WowAce

Configure which layout or profile to load on entering a zone

Reputation tweaking module for TweakHub with auto watched faction selection and detailed rep info updates.

Notifies you when you get aggro.

Quickly builds /target macros for immediate use.

FuBar_WintergraspFu

BigWigs_HealbotAssist

FuBar_LootTypeFu

Show an in combat indicator

Library to provide non-explicit cooldown tracking and callbacks.

MeleeBuffs

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

Browse your guild members crafts anywhere, anytime.

Holy Power, Shadow Orbs, Rogue Combo Points and Monk Chi.

Ratings

A raid buff tracker

Embeddable library to track raid/party roster

The ultimate in lazy Ulduar raiding

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

Adds an Atlas button to FuBar.

Converts commonly used acronyms into hyperlinks.