WowAce

Library providing multi-column tooltips.

Scan for rare mobs so you can find them and their loot

Library providing mouse-click support for LibQTip-1.0.

Show the appearance of an item when you mouse over it

Set and manage character notes that are displayed in unit tooltips and /who results.

A fancy LDB reputation display, show faction reputation and reputation change history

Item stat breakdown, analysis and comparison

Manages social information with a focus on main-alt associations.

Collectinator is an addon which will scan your pets and mounts and provide information on how to obtain them.

Complete tradeskill information.

Lightweight but powerful auction house interface

Displays item durability and repair cost.

Kaliban's Class Loot List Star Display

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

Shows mana usage as a percentage in a spells tooltip.

Interacts with TinyTip modules, either integrated or standalone, to provide extra centralized functionality. Required for an ...

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

"Your quest log is full". How many quests do you have in your log?

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

Adds various information based on PeriodicTable to item tooltips.