Bukkit

You can give an item an effect. That means that when a player "eats" the item, they get a bonus like speed.

HeroSouls

SimpleMedicineChest

Apply bans to players who die with style

Easily create your own items with custom functions!

ExpPerks allows players to exchange their exp levels for awesome perks.

Mafia - A game of lies and deception... Now a plugin for Minecraft!

Clash of Clans Minecraft plugin!

Zelda role-play plugin, SwordBeam

Emerald Items!!!

Allows worlds to be "space worlds" in which being without your space suit can prove deadly.

CivCraft: A Civilization Building Mod

MobSign is a plugin that allows users to create Mob Spawners with signs!

Allow Towny and Factions to work together, preventing double-claiming of land.

Gifts adds the ability to craft gifts that can be fully configured in the config.

Fully customize weapons, armor and tools with custom RPG stats with custom damage types, custom defense types, 25 item stats, and tons more options.

Change the color and format of your username when you hold TAB. Also, you can change what it says entirely!

Adds Harry Potter RPG Features

Implements your favorite Dueling Spells from Harry Potter

MMOCraftPlus Bukkit Plugin