Bukkit

ModChat

Clear Player Chat

Allows players to show when they have derped!

PriorityContact

A simple plugin that tells the player where they died in chat if they have the permission

A simple anti-swear plugin my pt1448.

CompleteDeaths2 allows you to take control of everything to do with deaths in Minecraft.

Makes new players answer a set of horse related questions

Plays sounds on events.

This is a great plugin too troll your friends

Better Essentials | Shortcuts | Reports

Trinkets

Chat between staff members without using 3rd party software!

Let your staff post updates and plans of your server to a easy to read staff mail.

Bubble Words brings into the world of Minecraft, as the title says, Bubble Words/Chat Bubbles.

Swagnames (NickNames)

ClearChat

TitaniumGuard - Control swearing, advertising, and caps on your server!

A plugin that allows you to send players a fake OP message and a fake join message.

Multilingual - Play minecraft in your native language!