Bukkit

Mine Chatter

MinetopiaCG

Send Broadcasts, Messages and Action-Bar Messages!

Limits chat to nearby players.

DelayCommands let you delay your commands

Role play commands

NickWorld

Ban words that people cannot use in chat, make people not be able to repeat messages, and more!

This plugin allows you to use simple commands.

RPG Chat for Proximity and Normal Talking

Some commands for your donators.

Message de connexion custom !

ObsidianRP

Do not allow player without permission to swear.

Shorten links!

Login plugin to display a custom login/logout message

xNoAchievementEvent

Minecraft Web Chat

This is a great plugin too troll your friends

ChannelIRC (ChannelChat)