Bukkit

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

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

PermissionsEx

WorldGuard

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

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

The Bukkit World Management Plugin.

Create modern looking holograms.

EssentialsX

The most used authentication plugin for Spigot and CraftBukkit!

Dynamic web-based maps of your Bukkit/Spigot server

Plugin Manager For Bukkit

Mine spawners with silk touch

An intuitive and powerful plugin to create graphical user interfaces.

Grief Prevention

The best chest&sign shop system for Bukkit

Open anyone's inventory as a chest in real time!

Allows server admins to easily modify how Minecraft works without programming anything

Tablist

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