Bukkit

An efficient plugin to check the time spent by players in the game.

Are you tired of players cutting down trees? Do you feel as if players just cut too many of them down? Then get ScreamingTrees!

Destroy lots of wood by breaking one

Change your online player count and trick server lists!

An elegant way to Deal multiple commands.

This will turn the player invisible

Make your own /help [page] command. Give players permission to certain pages.

Better Associations is a plugin designed to associate players based on ip.

Remotely manage your Minecraft server.

ShieldCharge Plugin

Block/Region Protection ~ MySQL, Multi World

An add-on for Chunky which lets you create and manage world borders

Helps players navigate through a server's road network.

SortingHopper

CrazyArena

Day/Night - PvP & Difficulty Cycle

This Plugin Stops Players Swearing In Chat

WardrobePlus - GUI Creation

Trouble in Minecraft

Core Updates allows the use of a MySQL database to store news updates and display them to in game player.