WowAce

Test whether the player can really dispell a buff or debuff, given its talents.

Tooltip scanning library.

On login, displays changes to your guild since the last time you logged in.

Zone text Data Broker plugin.

A library to help with localization of Archeology dig sites

FuBar_FuzzyClockFu

Sets you to DND when you fight a boss, and some other crap.

TipHookerLib

Tracks interrupts

Replacement for the default nameplates.

Create reagents easily

GirlFriend

Set the clicking action for Grid buttons

Bidder

For Developers (of Addons which uses LibWho-2.0): show queues and queries in realtime

Don't underestimate your little critters!

Provides buttons and keybinds for raid flare world markers that never stop working mid-session

Custom minimalistic nameplates

Provides a quick display for the LFG Call to Arms

Simple and rich Death Knight rune customizations