WowAce

DKP system for all guilds in the Banana Republic.

AddOn to Manage Roster and DKP for the guild

Does stuff for sachmo

Friends & Guild Data Broker plugin.

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

YssGuildShop

Gives a score for your kit allowing easy comparison with others, also colour codes kit based on appropriateness for your level.

Manages tracking of raid attendance, loot, and more.

A fork of BananaDKP.

BankAccountant

A tool to appraise, estimate, or judge your equipment against the equipment of others.

HazLoot

Allows raid leaders to view information on raid or guild member equipment information

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

Displays a grid of guild ranks versus permissions.

Combine

Saves contents of your guild bank and sends/receives updates over the addon channel

Allows customisation of login/logout system messages.

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

Facilitate better communication for loot councils