WowAce

Shared handling of alternate identity data between addons.

A UI for searching the guild roster.

Displays online guild mates.

A FuBar plugin for Converge Guild Officers.

Raid loot tracking and text generation

In-game EPGP guild helper, supports standby, main/alt shared pools, minEP, offpecGP. Fixed price list with progress multiplier.

Nihilum Raid Tracker, originally written for the EU guild Nihilum.

A collection of useful (guild management) tools and utilities for smarter than average bears.

View an image of your guild vault from anywhere.

Angry Raid Points

A fork of BananaDKP.

Keeps account of attendance and loot for raids, parties, bgs, arenas and solo for questing.

Loot management tool

Displays online guild mates.

Allows customisation of login/logout system messages.

Searches bags/banks of all your characters/guilds.

Need Greed window for EPGP lootdistribution.

Note + rep tracking for players, with guild data sharing.

Allows for easy congratulating when someone earns an achievement.

Save and send chat messages to many channels. Allows quick item and profession linking within your messages.