WowAce

DKPmon_BossAuction

Don't accidentally solo queue BGs when in a group!

FuBar_IceHudFu

Alert your friends when you ding, get an achivement, or get phat lewts!

ManufacSnoop

Displays how much your Shield Barrier will absorb if it is used at any given moment.

Automatically sends guild recruitment ads to the GuildRecruitment channel.

Automatically restock items from vendors and your bank

Creates an Auctionator's shopping list with all recipes your alts need based on Altoholic data.

clcInfo module for all Warlock classes

Rawrkitty

Status indicator that shows if a unit is hostile (probably mindcontrolled)

Sunwell Plateau assistant. Provides "un-ignorable" overlay notifications for Brutallus/Felmyst/Twins. Felmyst warnings includ...

Raid Inviter

Keep you bags clean with easy loot filtering and removal.

Makes most default frames movable (mailbox, achievements window etc.)

Grid status module that shows the remaining value of any effect tracked by AbsorbsMonitor

Adds information about the items tokens can purchase and vendor location to tooltip

Mail plugin for any DataBroker display.

Toggles quests and achievements tracking during boss encounters