Bukkit

Contraband Asker designed for prison servers

AdminControl - Server Admin Desktop Client

Ever wanted a very customisable rules plugin? Then I got one for you!!

RulesPlus

A complete chat suite for CraftBukkit.

A (hopefully) expanded-feature DnD plugin

Simple Chat

Light weight admin/moderator only chat

Mailings

Allows players to play sounds triggered by words in chat.

JacobIRC

Let Me Tinyurl That For You

Lightweight and solid chat bubbles plugin, no dependencies needed.

Telepath

this plugin is a plugin that changes things that display like chat and such

Change your chat color or nickname color through a completely configurable GUI.

Host a Discord Bot directly from your 1.9 server!

ECReports

Private chat channels for friends

Smiley