WowAce

A library to handle rearrangement of blizzard's frames when bars are added to the sides of the screen.

Library for tracking cooldowns of other players

Keeps track of healing spells cast by everyone in a group.

Library to help with querying unit talents.

TableTopLib

Stitch-1.1

Library to provide non-explicit cooldown tracking and callbacks.

Embeddable library to track raid/party roster

XML import library

ItemPrice-1.1

Quest information

Communicates with guild members for their positions on the world map

HealComm-2.0

LibDogTag-2.0

Dropin replacement library for SetBackDrop

Library to provide visual bar creation and management.

JostleLib

Frame layout manager for side panels.

A lib to manage action bar and timers

Shows loot information in item tooltips