WowAce

Shows Status Bars that you can drag around and group up for your cooldowns

Static library of wow map data

Displays friend notes in unit tooltips, at logon, and in /who results.

Shows where the equipment of inspected users or yourself is from.

Adds a highlight border to items in your MogIt Wishlist, making them easier to see.

Quest library for mob location and other information

Incoming Heals

Smooth group roll frames

A data broker display, that shows one block per plugin.

InfiniBar-2.0

Adds your damage to Scrolling Combat Text

Shows your standings with the factions.

Automates bites during the Blood-Queen Lana'thel encounter in Icecrown Citadel

Check the quality of wild battle pets

View an image of your guild vault from anywhere.

Searches bags/banks of all your characters/guilds.

Antagonist

cyCircled

Allows tradeskill usage by clicking items or reagents.

Tracks the HoTs you cast.