Bukkit

You can only kill non OPs with this.

Slammer

Simple warn plugin for bukkit

provide authority of players for servers without online-mode

Player data collecter for the Minecraft Server Alliance group.

Interaction Control

This is a plugin that could block most of the hackers from entering the server

This Plugin can open/close Trapdoors in a custom radius.

Allow players to break blocks with just one strike using a universal InstaBreak tool

The recent "session stealing" glitch has been going around, and this plugin is here to stop it.

ServerLock

Adds flags to WorldGuard that allow you to automatically remove items dropped in specific regions after some time.

Get rid of griefers a lot faster!

Kicks a Player when Placing a BlackListed Item! BlackList Items and Change the Kick Message in the Config!

RealViewDontTouch

Simple control of vertical bedrock limits of Minecraft worlds

Notifies the Console and Admins of Ore Placing/Breaking.

Disables Players without the given Permission to Craft, Build, break Blocks etc.

Prevent players in freecam from interacting through walls.

This allows you to view server details, and other player info