WowAce

Provide plenty of links

Tracks whispers and conversations

Monitor the remaining duration on your Mysterious Eggs and other perishable items.

BeneCast 10

Lists Pots and Herbs you got on all chars and allows you to specify color coding

Adds cooldown timers to your trinket procs

A simplistic clock.

lern2count adds ABinfo castcounts to spell and actions. It has a builtin reagentcount too.

Keeps a list of all items you want and shows how much you need.

BigWigs_HealbotAssist

Stores a browsable database of spells that mobs cast

Flames anyone who lets his debuff expire on Malygos Phase 3

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

Customize the appearance of the chat bubbles.

SanityItemCache

A frame with a text that gives you the amount absorb left on target, or in TankMode absorbs left on yourself.

A library to help with localization of Archaeology artifacts

FuBar_ItemListFu

Keeps track of important de-/buffs in a splash screen

A plugin for OneBag to make your keyring the same texture as OneBag/Bank.