Bukkit

WorldEdit is an in-game map editor for both creative and survival

A new perfect way to clear common lagg in your server!

PermissionsEx

WorldGuard

A collection of useful commands and features for server admins and players.

Vault is a Economy/Permission plugin for hooking into the various Economy and Permission plugins.

Plugin Manager For Bukkit

The Bukkit World Management Plugin.

A plugin to create holograms in Minecraft.

Mine spawners with silk touch

NPCs for Bukkit

The most used authentication plugin for Spigot and CraftBukkit!

show the kills an death with the Scoreboard

Chest Commands GUI

Set up custom villager shopkeepers

Library for intercepting sent and receieved Minecraft packets.

The premier long-range map editing tool for Minecraft SMP.

BarAPI

Guilds, war, land claiming, and user-controlled antigrief

The best chest&sign shop system for Bukkit