Bukkit

Protect your land from other players by burning useless items

This plugin will allow protection of dropped items for an amount of time specified in the config.

Block/Region Protection ~ MySQL, Multi World

Have players protect via world guard for a price!

EasyAntiSpam

TestqUIz is a light-weight, sign based, testing plugin!

Control who can build!

Prevents people from using fullbright hacking, or atleast slows them down

Shielder is a simple plugin that makes new players invulnerable to PVP for 30 minutes when they first join the server.

GoinRound

OpChecker

PistonsPlus

SpamBots got you down? Put them down!

WorldGuard Extra Flags

Simple blacklisting and protections with animal control

Disables your chat to prevent spamming, ban the spammers while the chat is disabled. Re-enable it again after!

SignLogger

City protection Plugin

Alternative Factions and Land-Grabbing Solution

A PVP plugin that adds what I've been missing from other plugins. It adds basic PVP functionality along with a lot of unique features and a rich config. Features include PVP clans, rivals, customizable KeepInventory when in PVP, bounties and more