Skript is a Bukkit plugin which allows server admins
A Minecraft plugin API
Adds Discord Functionality to Lands.
A Forge mod that implements SpongeAPI
Hub plugin for minecraft
canarymod plugin to play capture the flag on minecraft
Positional Audio Communication for Minecraft with Mumble
Hitman Bukkit Plugin by Arasus
Bow and Arrow BullsEye game plugin for Minecraft Bukkit servers
Modular Minecraft server plugin - commands, events, ...
HeroCraft Abilities Using the CraftBukkeit Plugin
LetsPlay is a bukkit plugin.