Bukkit

SimpleZones

Simple warn plugin for bukkit

Controls Punishments for your server

Lightweight plugin which stops creative mode players from killing people

MobRepeller is aplugin that keeps your areas peaceful in heavily-modded worlds with Totems.

A user-friendly and fully configurable region claiming plugin!

Gives you and your players the ability to customize their combat experience.

Kingdoms 2

Set up redstone wires as high voltage cables to protect areas

Logs who and when players join in a text file.

Protect your horses with signed saddles.

Freeze The Bad Guys!

Get rid of griefers a lot faster!

Anti X-Ray and TNT Griefing Tool

Allows Protection of Horses, and changing horses color / jump height

Charge money for WorldGuard region claiming and flagging.

Your NPCs are now immortal, if you don't have requied permissions

Allows you to force a gamemode upon players using a command or permissions

EventLogger

Heimdall anti-grief: automatically detect and ban griefers