Bukkit

A plugin that lets you save inventories and other data for quickly switching between them.

Track those griefers like a bird of prey!

Installer

edit all messages of your server

Kits allows you to spawn, create and edit kits ingame

IRC for Minecraft!

Bans, kicks and records.

You can make a custom book!

An anti-swear plugin.

Quickly add invisible light sources

A very easy-to-configure item ban list, with default values for commonly-banned Tekkit items.

Steel Security

Periodically delete unused regions and chunks.

Add prefixes and suffixes

MonsterFix

PlayerTrails

Go out into the world armed with an assortment of gizmos at your side.

MyHealPlus

Dynmap-Structures

Region specific permissions