Bukkit

An advanced SQL based punishment management system for your server

Allows players to have nicknames.

Automatic Announcements

Making reporting players simpler!

EasyRanks: A simple Admin-Tool for coloured Tablist and Chat! Take a look at it!

Logs chat and commands

A party plugin for your server bukkit or spigot.

[Clearchat] clear the chat with just /c!

PerWorldChatPlus

CrazyLogin

Light Weight - Color Chat [1.7.2] (2014)

Ultimate Hub Management

ChatManager+

replacement for faction chat with faction 1.7.8+

This plugin allows you announce/send Titlebar or Subtitlebar as message or on join/firstjoin (also ANIMATED TITLEBAR)

A simple and easy to configure plugin that lets you announce to the server when a new player joins for the very first time.

The best chat channel plugin in Minecraft!

edit all messages of your server

Control your chat.

Simple broadcasting on your server.