Bukkit

Stops TNT and Creepers exploding!

Logs chat and commands

Permission-based world modification control

AccountGuard (IP Account Protection)

Simple plugin for private chests

A customizable faction plugin that focuses on promoting the multiplayer interaction!

Prevention of hacks and other malicious tinkering on a Minecraft server.

Offline-Mode authentication plugin [Free Sourcecode]

Easy to use (offline-mode) login authentication plugin

The #1 Anti-Xray Solution on BukkitDev! Now Compatible with CoreProtect!

Easy login plugin for your server.

Simple locking solution for Chests, Furnaces, Dispensers, and Doors

Allow Users to use Worldedit only in World Garud regions

Repairs Creeper and TNT damage after a while, and much more!

Sentry is a Citizens2 Character that guards against mobs and players

Collects data about ore diggers

UltimatePlugin

RegenBlock beta 2.2 - Regenerate destroyed blocks on a timer

Control your chat.

Protect your server with a password