WowAce

Assist you with faction transfers letting you know which mounts, spells, etc you have and what they will be swapped to.

Adds custom layouts for Grid

cgCrafty

Simple Bars for your Shaman's weapon buffs and shield spells.

A Data Broker add-on for quickly switching your specialization with gear set and loot specialization.

Embeddable chat throttling library with traffic shaping and priorities

Allows frames to be dragged around, without permanently changing their position.

A boss encounter engine used by other add-ons

Stitch-1.1

What did you just loot?

Adds Raid Target Icon status to Grid (Player or Player Target).

Customize the appearance of the chat bubbles.

Broker2FuBar

CrayonLib

A customizable casting bar replacement for TBC Classic & Classic WoW

Notifies you of experience gains

FuBar_BongosFu

Library to provide non-explicit cooldown tracking and callbacks.

Adds a confirmation dialog when crafting Bind-On-Pickup trade skill items

Library supporting plug in filters.