Bukkit

Chat going out of hand? Disable global chat!

CClearChat

custom ranking, server administration, and chat plugin for minecraft servers

Store up your exp... And much more!

Welcoming And Leaving

Translate any plugin into any language

Displays the current exp-level in the Chat.

Lets your players become Dovahkiin, use their Thu'um.

Kick players advertising for other servers

CustomMessages

MineverseChat - Chat with channels!

Command iConomy

SimpleAutoMessage

Private and public chat for admins

improve the chat and bring new feture for the chat

A Simple Plugin which adds Commands to a sign.

This plugin allows you announce/send Actionbar as message or on join/firstjoin (also ANIMATED ACTIONBAR)

Message when a player joins or leaves a world!

A plugin to show all of Bukkit's color codes.

Send chat messages from/to MatterBridge