Bukkit

show listing of the last logged in players

Just disable items and weapons drop inside a world

Lag Clear - Bugs Fix - Increase Performance - Grief Protection - Optimize ur server

FancyWorld

Go and marry the one you love

zPlugins - zRanks

Promote your players easily

ButtonLock

SuperTrails

A very unique spleef plugin

Lets your players become Dovahkiin, use their Thu'um.

Block words, sentences, or IPs in your chat, with configurable punishments!

Private Horse

Plot Manager

A simple, yet powerful, AFK (away from keyboard) plugin for Minecraft multiplayer.

Spawns Either A Super Zombie Or Super Skeleton Where You're Standing

Allow players to do some special action.For example: VIP Fly, Change speed...

prevents players from flying and attacking mobs

SimpleAlert

Allow you to manipulate the running Bukkit server.