Bukkit

EnviroThx

An enjoyable Minigame where Farming, Mini-Base Building, and PVP come together.

A mini game of assassination

A no-economy item-based trading plugin for Bukkit.

Day time control.

Private Hungergames

This plugin allows you to set tolls on certain blocks as well as many more cool features! Doors,TrapDoors,Chest,ETC

Player revival

MobMania

Zamorbrine

ecoAdventurer

A custom some kind of "infected" - experience

Cool plugin to give your users Military Rankings(Sergeant, etc) based on kills!

Kingdom

SpoutItems will let you change an item's appearance, using Spout.

SpiritualDeath

An advanced player plot world system.

Arenas (PVP arena plugin)

A plugin for rolling dice.

Fighting controls PVP so that two players can fight only if they have both agreed.