WowAce

tekSupport

Outdated!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

LibRock-1.0

RaidSpy

Mark My Words

Adds four icon indicators to Grid (top, bottom, left and right).

Allow rule based automatic rolling on loot.

Library for tracking cooldowns of other players

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

Database of Mailbox locations for HandyNotes

Add lines to ore and gem tooltips that show prospecting sources/results.

ImprovedTargetFrame

quick quest turnin and acceptance with a shared keybind

Adds a button to the quest completion interface which allows you to auto equips selected quest Item after completion

DreamChat

Shows class colors on player nameplates and names

Announces interrupts in the chat

Sets the DND flag, when are in combat.

Adds manabars to the sides of Grid frames.

Allows you to prevent addons from sending and receiving messages.