WowAce

GrindStatus

Bayi's Extended Questlog

Bulk mail reception made really easy

Quest History tracker and shows lists of quests in each category

Checks your gear before bosses and yells at you if you're an idiot

Provides access to all Portal and Teleport spells on right click of one button.

Shows you a much bigger icon selection frame

Library that tracks incoming heals

A library to provide a markup syntax

A blizzard group finder replacement

Adds World Quests to the quest list

Keeps track of HoTs, DoTs, Buffs and Cooldowns. With audio and text alerts to refresh them.

A library to provide unit-oriented tags to LibDogTag-3.0

Manufac

XRS

CandyBar style cooldown display

Smooth combat HUD based on ArcHUD2

Automated smart raid marking to speed up trash clearing in instance runs

Track all threat redirection ability transfers and cooldowns (Misdirection and Tricks of the Trade).

Regain that wasted space!