Bukkit

Deletes all the ampty messages

Anonymously send private messages to players!

Prevent multiple people from joining in a short period of time

PreventIp

Plugin to control Survival games!

GoreaParty

Players will be notified when their name is mentioned in the chat!

OPMC (OPMessage/OPControl)

ExChat

Plugin that allows you to disable, change Death, Join and Leave messages. Shoots lightning at player when he dies.

A plugin that can do maths on your server

A join message plugin!

Used to clear chat.

mChat - Clear Chat

Powerful In-Game Forums

EAS plugin for servers with the Localized Weather and Storm Fronts mod

Test whether you are in sync with the server or whether there is latency between you and the server!

Raise your hand!

ChatReplacer

bFormatted - chat formatting at its simplest