WowAce

FuBar_ArenaFu

Piece of mind by being one with your class.

FuBar_NinjutFu

Tracks profession specific cooldowns and items across all your characters

For Developers (of Addons which uses LibWho-2.0): show queues and queries in realtime

Automatic Refilling of User Defined Items

Save and load macros.

Track any items you want in a tooltip

Gives a Smoother Quest Experience

Helps you automate selling stuff.

MountUp

Adds options to create customized layouts from within grid.

GetInLine

NabuFiveSec

Automatic tracking of the current target's creature type. For the discerning PvE hunter.

Saves contents of your guild bank and sends/receives updates over the addon channel

Adds various hearthing items to AdiBags virtual groups

Replacement for default bags.

Mob respawn timers

A Data Broker display for combat statistics.