WowAce

IFrameManager

Reputation tweaking module for TweakHub with auto watched faction selection and detailed rep info updates.

Creates a broker plugin for all your broker launchers

Joins the LFG channel automatically.

Calculates the relative value of attributes towards physical dps.

Adds custom layouts for Grid

LDB display addon with one Blockoblock per plugin.

Automagically call who should cross over

Makes the Battle Objectives Frame movable

Lightweight time display, with micro menu and memory usage tooltip.

Reports the total threat on a mob at the end of combat.

Draws 3D portraits for main units that can be moved or resized at will.

Fizzlebag

Helps to track outgoing mails

Ranged stats Data Broker plugin.

Adds aggro coloring to oUF.

Guide Handler UI.

Shows at-a-glance what raid buffs/debuffs you have.

eeMon

oUF layout looking like ag_Unitframes and Grid.