Bukkit

WorldEdit is an in-game map editor for both creative and survival

WorldGuard

The Bukkit World Management Plugin.

A new perfect way to clear common lagg in your server!

With this plugin you can cut down an entire tree by breaking the bottom part!

Grief Prevention

Portals module for Multiverse-Core

Remove lag and improve the performance of your server significantly with this tool!

Allows one person to sleep, without others on server having to sleep or log.

The multiworld plugin made by ferrybig

The premier long-range map editing tool for Minecraft SMP.

CoreProtect

Nether Portals module for Multiverse-Core

Inexpensively protects your ores from cheaters.

Creates images and pixel-art using in-game blocks

FastAsyncWorldEdit

Create user friendly menus to travel to worlds

Remove lag on your Bukkit server with this easy to use plugin

CraftBook adds a number of original gameplay elements to Minecraft from integrated circuits to gates

Use flint to edit armor stand attributes without commands