Bukkit

A minimap without clientmod using Maps!

Draw images on maps and put them in Itemframes

Recycle unneeded tools and stuff!

Backstab, Poison and Grappling Hook

Prevent Farms in underground

Modify the amount of hearths and foods on respawn

Prevent Users from using certain Weapons/Armors

Create level systems after your wishes!

CurrencyHandler is a Economy API that features support for more than just money.

Buy Groups and Permissions with Money or Skillpoints