WowAce

Displays online guild mates.

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

Shared handling of alternate identity data between addons.

A UI for searching the guild roster.

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

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

Raid loot tracking and text generation

Angry Raid Points

View an image of your guild vault from anywhere.

Searches bags/banks of all your characters/guilds.

Allows customisation of login/logout system messages.

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

Tracking and ranking of dps/hps in a guild.

Need Greed window for EPGP lootdistribution.

Manages tracking of raid attendance, loot, and more.

Friends & Guild Data Broker plugin.

Provides shareable notes and other information for your guild, party and raid community.

Addon for creating, storing, and sending chat messages to multiple channels at once. Supports item linking and configurable key binding.

DKP system for all guilds in the Banana Republic.

A FuBar plugin for Converge Guild Officers.