WowAce

Not required if you already have TinyTip, as this is a basic TinyTip module. Allows you to reposition the tooltip, smart repo...

Relegation

Adds trinket tags to SUF

Show a bar indicating the remaining lifetime of your temporary pet

Shared handling of media data (fonts, sounds, textures, ...) between addons.

Frame layout manager for side panels.

ControlFreak

Shows the Guild Achievements Points and Members in the tooltip

Klappa

StopHealingMobs

BigWigs_CThunAssist

End of combat reporting for feedback on how your cast time was spent or wasted.

Reminds you to resummon your Ghoul

PhatLoot

Utilities for pixel perfection, decimal to hex, parsing item strings

A library to get localized boss names from the Encounter Journal

Encodes and Decodes between Lua tables and JSON/CSV.

Show a bar indicating the unit's Burning Embers count.

FuBar_SpeedFu

A library to provide a way to easily create controls for Blizzard's options system