Bukkit

Disable hunger, damage and sprint exhaustion with permissions. Very lightweight!

Place water in the nether.

Kill people by falling on them!

A simple HTML Webserver running on the same port

MOTD is a lightweight motd, time vote and teleport plugin.

Let your players store their money in a bank account!

Just Slimefun, Needs CS-CoreLib to work

add new features to games

a powerful performance optimization plugin designed to manage and reduce your Minecraft server's RAM

Auto modulating help messages

Small farming plugin

Create lights for houses and streets that turn on/off automaticly!

Make your own /help [page] command. Give players permission to certain pages.

Add "Portalstone" to your Minecraft world.

Protect Areas & Object, alert place/destroy block,use command and more other!!

A votifier add-on that gives players a random item for voting.

NickNamesX is a great and simple nick plugin with many plans to come!

Short commands for your server's essential links.

Fake banning, login, etc., compressors, and change client-side time!

Mob Spawn Control allows you to limit the use of mob grinders. The tool include reporting, teleporting, and more.