Bukkit

Salvage your iron and diamond tools!

NoMobsOnMyPlate allows the server owner to decide what redstone devices a mob will no longer be allowed to interact with.

Frostbite

CloudMining

CookieCommands

Talking Signs

Minecraft version of the Hunger Games

New enchantements, usable on every item! World Editing? Role Playing? Just 4 Fun? Everything is possible!

MrBlueSky

Rise of the Artisan

Changes the Minecart Mechanics

Player gets banned for a certain amount of time upon death depending on the circumstances

Server speed and interface improvements

SuperSpleef

mmoMail [mmoMinecraft, Spout]

Bringing the HungerGames to Minecraft!

Allows binding of commands to items.

All-In-One Player Protection System

Teleports noobs away from spawn.

Intersections know the route to your destionation.