Bukkit

Sensors is a bukkit plugin, that supports creating and managing 4 types of sensors: move, light, fire and block.

Game time synchronization with real time.

InvCheat (InventoryCheat)

PowerTool

Provides comimiziable a way to keep chunks loaded

This plugin (MTPAH) gives you the possibility to appoint a place to your home and teleport to it again and again.

A set of simple utilities for Survial-Players and Admins

Powerful yet simple audio engine to integrate dynamic server audio through a hosted web client

A plugin from the idea of Essentials. Adds in additional commands that will just make managing your server a tad bit easier.

Cuts down an entire tree at once

Custom classes, skills with an easy to use online editor.

Read the Bible through commands or get the books.

Cut ground log and let the logs fall down

This plugin is still very new. But there are still some cool features! :)

Play tag with your friends in Minecraft!

Add "Portalstone" to your Minecraft world.

Glass paths that are generated before you as you walk

Easily manage item metadata!

VipSlot allow you to reserve slots

EnderChest Command