Bukkit

CrazyWeather

MineCoupon

A plugin that lets you manage per-world inventories, or shared-world inventories.

LiteChat is a simple to use chat plugin.

A plugin for displaying ranks as a hoverable prefix [R] before the users name

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

The simple and innovative way to protect your server.

Allows setting of players health, air, and hunger

CrazyCaptcha

ColoredSigns 2.0

A plugin to create "cutscenes" for your server.

Deny the spawning of mobs by Spawn Eggs (And Snow Golems!)

Mutechat plugin

A configurable chat autocensor plugin with warnings

FancyWorld

Find out Block IDs instantly!

WorldGuard Extra Flags

Teleports players to random locations within set bounds

PlayerSpy lets you view information about any player on the server.

Get the attention of your players by sound notifications!