Bukkit

ComicBookHeroes

Override /server

Toggles the physics within a radius of the player.

mcMMO

SetSpawn

QuickSell

Detect and fight the exploitation of various flaws/bugs in Minecraft!

BukkitGUI - the most downloaded GUI for bukkit and any other server

Players in creative can 1-hit-kill mobs when crouching

A bukkit plugin for adding neural networks into minecraft.

Buy lottery tickets using cobblestones

Advanced /vanish plugin which makes other players think that you're not on the server

Lop off Player and all Mob Heads with configurable drop rates + pvp-farming nerf, includes detailed commands and permissions

Nether Portals module for Multiverse-Core

The all in one Shop plugin, With a sexy GUI, Sleek code, and light weight performance!

Mobs will be teleported up until they are no longer suffocating

A plugin to warn your players when your server will restart!

Light weight and easy to use!

Disguise as a mob or other player

Get slimefun dusts from breaking ores!