Bukkit

Logs all messages, and when Chester is mentioned, he replies with a logged message.

A fair global banning system

Creates a slightly less boring flat world for creative

A plugin for Bukkit based Minecraft server that adds a floating island dimension similar to the old skylands.

Attempts to do the work of the server admins and moderators automatically allowing them more time to play the game.

Create a link between your in-game chat and an IRC server.

A small plugin to provide chat formatting to IRC and game messages using SimpleIRC and Vault

A plugin for Bukkit based Minecraft servers to add a new mechanic similar to the bloodmoon event in Terraria

Attempts to remove any trees that are left floating

Allows creating linked signs.

http://dev.bukkit.org/server-mods/infiniteplots/

A very simple plugin that will make all water and lava sources infinite.

A plugin for Bukkit based Mnecraft servers that provides a per-world /rules command

It Makes Wool Glow !

A schematic manager that makes saving and loading the states of WorldGuard regions easy.

A plugin allowing players to intuitively switch texture pack while in game.