Bukkit

Adds 1.9 combat and health regen to 1.8

A plugin to set up easily a brewing production chain.

Clothes Plugin

CautionSigns

Adds quarries to your server! No mods required!

PvP Shield protects players from PvP on respawn.

Teleports the player back to the last death position.

Advanced non-conventional free-fight minigame

Open Iron Doors by Rightclick

Endermen can remake the Ender Crystals and if all are remade the Ender Dragon will respawn.

ShelvedBooks

A framework to make any game you can imagine.

Removes durability and protects items when dying

Change which hostile mobs can be hostile to players

FireworksEx can cause a great welcoming for players that join and will allow you to create different fireworks using commands.

Potion Control, Change almost every aspects of potions

InfAir

Configure how many people of the same IP can join your server at the same time and in general

Allows Player to use Lures while fishing to get better loot than just fish.

Forbids to place a block directly one block above a chest