WowAce

Auto sizes frame layout depending on group/raid size or predefined zone data

A simple addon that warns you if your pet isn't attacking while you're in combat.

Shows a window displaying any raid member below 10,000 health during the Chimaeron encounter.

PricePer

RainbowEnchants

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

Displays bars depending on your professions

Manages the scanning of the auction house in a reliable an efficient manner.

Keeps track of time played and rested XP across your characters.

TradeBar

TrackingInfo

Displays a reliable cooldown timer for the Shaman Ascendance ability

TableTopLib

Eliminates the spam from the chatframe and sums it up in a broker plugin.

StatStain

Shows your FuBar addons in your LDB display.

AutoFIR

Protractor

ArenaPointer

Adds a highlight border to items in your MogIt Wishlist, making them easier to see.