Bukkit

Edit the player's TabList as you want!

An efficient plugin to check the time spent by players in the game.

Have your users report bad players!

Version 0.0.2 is available

Powerful ingame issue tracker and player ticket manager backed by SQLite or MySQL

Karmiconomy

Permission based announcement plugin.

AdminControl - Server Admin Desktop Client

JoinMessagePlus allows you to change or turn off the join and quit messages of Minecraft.

Ever wanted a very customisable rules plugin? Then I got one for you!!

A lightweight and intuitive survival plugin that offers alternatives for many others

Announcements

SMP

PrefixSuffixManager

Achievements plugin for the modern bukkit

Notifies people with the permission when someones mines ores.

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

Want to preview donor kits or in-game kits before purchasing ranks or buying kits? This is the plugin for your server!

This is libbery for Beast pluigins :)

BSwear (Better Antiswear) is a very powerful antiswear plugin (with lots of words preblocked in the config)