WowAce

Adds a couple of graph displays to Skada.

Allow rule based automatic rolling on loot.

Buff reminders and more

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

PlayerNotes

LittleTrouble

Don't underestimate your little critters!

Show a texture on demand

Library supporting plug in filters.

VersionChecker

AltClick an item in your bag to add it a mail, auction, or trade frame, and alt-click to buy a stack if reagents.

FuBar_switcherFu

"Your quest log is full". How many quests do you have in your log?

Cartographer_Mailboxes

ShadowGreenLight helps you decide if recasting SWP/Corruption is worthwhile

Clean looking square minimap with many options.

Adds indicators to the sides of Grid frames.

Save and load macros.

Shows skills in a tooltip and allow them to be used. Also keeps track of Cooldowns.

A library for PvP and Battlegrounds