Bukkit

Shout is a small plugin giving your server chat more depth.

A self operating whitelist system for Shivtr based websites

Scripter - Ruby on Bukkit

PlayerUUID allows you to use a simple command to return as many specified player UUIDs as you want.

ItemInfo

Lets users broadcast messages with colors!

An easy-to-use chat management tool for your Minecraft server!

This plugin removes all block placing/breaking functionality, unless you have the necessary permission node.

Killjoy

MicroJump with @p, @a and send to another server only specific player.

An Essentials and CraftBook Alternative!

A plugin for transferring player inventory contents to another player whether offline or online.

The Plugin Blocking commands

Unattended and simple protection for horses.

Easily change your server's MOTD - no reloading!

Fully saves the world and player data every 5 minutes.

EzAnnouncements

UnRealMOTD

A plugin which lets you create inventory gui's with and even without programming!

BestWarn