WowAce

Shared handling of media data (fonts, sounds, textures, ...) between addons.

EBB adds groups of bars to your screen showing you which (de)buffs currently affect your toon or some other units.

Library of compressed itemid sets.

Inserts some media into LibSharedMedia's storage.

Displays online guild mates.

Displays online friends.

Shows your standings with the factions.

Helps you keep track of your experience.

Library providing multi-column tooltips.

Resizes some default UI frames (GuildUI, LootFrame, RaidInfo, TradeSkillUI and TrainerUI) to show more lines

Adds various information based on PeriodicTable to item tooltips.

A library that maintains a cache of items and their types.

Allows you to browse your clients database

opens/closes all bags when at merchant (instead of only the backpack)

Displays online friends.

Displays online guild mates.

LibDataBroker-1.1

Shows your standings with the factions.

Saves a snapshot of the UnitAura return values to the SVs.

Improved Guild Control Panel