Bukkit

AutoHelp! The new Help Plugin that removes the task of replying to everyone asking Questions!

SimpleMOTDChange

Sude

Spy on specific players commands!

MOTD Randomizer!

Change your connection messages or completely turn them off!

Simple /mods Plugin

BasicInfo

A plugin to force players to send a message

Displays cool and interesting facts about Minecraft and/or the Server you are on!

ToolNotifier

PlayTime for your Server

Rules

AdvIpLog - An Advanced Ip Address logging plugin with advanced command lookup commands and works with auth plugins.

Run counter-checks against hackers, griefers, and players who wish to intimidate you on your server.

xProStats

Pale is a Minecraft Java plugin that allows you to use many commands.

Little plugin which changes chat like "./command" into a clickable command text!

GoatPanda-PlayerControl

so simple plugin.