Bukkit

Make Animated Pixelarts and Scenes

The tool plugin for building curves

Most advanced chunkloader yet!

Flow

Makes creating a Prison server even easier!

PowerNBT

SkyBukkit seamlessly brings SkyBlock to Bukkit servers.

Who wants long wires? Go wireless!

Visualizes your WorldEdit selection with particles.

An extremely fast and efficient logging plugin for Minecraft servers that uses its own custom database

This plugin allows to compile MPL scripts on a server

black-/or whitelist blocks in WorldGuard regions

Builds a player statue out of blocks based on username! ALL skin formats supported.

Create teleportation destination. You can also use Nether Portals !

Stack mobs in a highly efficient way to decrease server and FPS lag.

Removes the dirt screen that appears when changing worlds.

Mario WorldCraft

Create templeworlds that can be instanced and played by your players. Perfect for Adventure maps!

CreativeStick will allow you to build, replace, or remove blocks at a distance by simply shaking a stick at them.

SWatchdog is ultralightweight blocklogger, similar to bigbrother. Also allows to rollback griefs in specified area