WowAce

BagPress

Adds Buff/Debuff icons to the grid frame.

Shows the price of a single item in the Auction House.

Simple Bars for your Shaman's weapon buffs and shield spells.

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

MAcon

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

ItemEnchantApplication

FuBar_TinyTipFu

FuBarPlugin-2.0

Assist you with faction transfers letting you know which mounts, spells, etc you have and what they will be swapped to.

Communicates with guild members for their positions on the world map

Welfare Epics

FuBar_combatTextFu

GridLayoutPlus

Show optimal path for artifact leveling

Grid module to emphasize units based on some configured conditions.

Lists and/or reminds people missing flasks or food buffs at every ready check.

Historian

View any characters bank and bags from anywhere. Stores items in Baggins submenu "Anywhere Bags."