Bukkit

An advanced location plugin. Quickly get information on yours or another player's location!

Bring blocks to Life!

A simple automated message announcement plugin.

CustomBanMessage

Or'sAutoMessage

Preventors is a plugin based around preventing people from using certain events.

A simple killcounter for Minecraft.

A plugin that allows users to chat locally and globally.

Get infinite inventories for your server!!!

A plugin for players to log problems, requests and complaints - Easily manage all of them!

Charge Players Money to Place Certain Signs

PlayerMetrics

Test your server to see if it is working!

Automatically Scan and catch players over the amount of ping you set in the config !

Weapon Set

A powerful custom-command system.

FireMessage

Finds a players Minecraft username if you only know their display name. Works great with nicknames!

SuperLog is a very simple and easy to use anti-griefing plugin that doesn't use MySQL.

Social graphs, chat logging, and messages made simple!