WowAce

Adds indicators to the sides of Grid frames.

Shows who controls Wintergrasp and the time until the next battle.

Adds Friend and Guild options to the context menu of player units.

Cartographer_ExtractGas

Buff reminders and more

Avion

Control screenshot format and quality via LDB displays

A library which provide tools for detecting adverse effects on units.

Light-weight enhanced casting bars

Quest information

NCHide

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

Transcendence Monitor for Monks

Displays a reliable cooldown timer for the Shaman Ascendance ability

Displays a variety of useful stats for tanking

Outdated! Please use 'XLoot', available on Curse and WoWI

Cartographer_Mailboxes

Adds item values to chat messages.

Lute

Adds your damage to Scrolling Combat Text