WowAce

Scans your Equipment for cumulative item bonuses and sums them up.

Uses guild notes to add alts' main names to chat windows and other places

Client for MagicDKP which handles standby calls and bidding on items.

Automagical macros for each talent tier.

Speed plugin for any DataBroker display.

FuBar_ItemListFu

A small checklist for raid (de)buffs and who brings what.

Visual Raid Cooldown Tracking

FuBar_PuntFu

Considers an item against all the items you have to determine whether or not it is an upgrade

Estimated time until current target will die.

Animated target indicator

Jigsaw

Captures chatframe Tradeskill Links for later reference in an easy to read format

Tracks the precise arrival & departure schedules of boats and Zeppelins around Azeroth and displays them on the Mini-Map and ...

Options for TinyTip

A plugin for OneBag to make your keyring the same texture as OneBag/Bank.

quick quest turnin and acceptance with a shared keybind

CharacterInfoStorage

Creates virtual cyphered chat channels over guild addon communication channel.