Bukkit

More Creepers

Alows players to do quests through a variety of different custimisable options

Adds more bars to Minecraft without spout!

Add herobrine to Minecraft!

Catch Minecraft mobs using eggs.

Change Chat Color With Signs

Sync your WordPress Users to Bukkit!

Jail++ is a fully-featured Jail plugin for Bukkit, and it's the official successor of Jail, JailLikeHell, and SimpleJail.

Intersections know the route to your destionation.

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

A simple plugin for OPS everywhere!

A plugin that has multiple broadcasts.

BukkitRestrict contains a bunch of useful tools. (anti-hack, anti-click, anti-item and so on)

SuperGrenades

AntiSpam

CodezRedeemz

A plugin that has basic frost commands.

Last Man Standing

A anti-greif server Control Plugin

iRedstone