WowAce

Never miss an Brain Freeze, Hot Streak or Missle Barrage proc

AnalogClock

Lute

This is an add-on to block incoming guild/party/duel requests (except for friends/party/guild) (previously ASSBlock)

Automagically draw your weapons !

Makes the message dialog movable

Aggro notification library.

Browse your guild members crafts anywhere, anytime.

Notifies you of new calendar event invites and reminds of upcoming events on all characters and realms

Converts incoming ALL CAPS CHAT into lowercase text.

DungeonCrawler

LDB data source displaying character stats

Adds an additional spell alert if you have more than one charge of a buff that is normally tracked by the in game spell alert...

Hold a key to temporarily center and magnify the Minimap.

BigWigs_HealbotAssist

A money data broker plugin.

Destruction Warlock priority module for clcInfo -- Maighurl

Congratulate people when they ding

Keeps track of your reagents.

Automatically equip 'Chef's Hat' if the Chef enters the kitchen (Cooking TradeSkill).