Bukkit

WazZ Paper!

Commands for teleporting yourself or other players. Also information about locations.

Linx is a plugin to link your players to your servers website, etc with typing only one command for each!

Bulletin board

A list of players you would like to watch. Simply add and remove them from your list.

Played measures the online time of players.

AutoBook

Let your players shout across the server!

YAEP (pronounced "yep!") is a lightweight alternative to heavier "essential command" plugins like Essentials.

Bradster's Administration Panel for PermissionsEx

Mod-Helper is a plugin that allows a user to access a in game wiki and get be edited by the server owner.

This plugin displays that there are no plugins installed.

MenusDeluxis a plugin that makes a menu that is sent to the player with /menu name.

xChat | Lightweight and simple chat plugin.

Multi-announcer with permission to view and permission to subscribe

BlockName Plugin

Survival 101 is a War plugin. Multiple gamemodes.

Provide a clickable command interface/gui for players!

The Hidden

Replace Bukkit's custom event messages with your own