Bukkit

ServerSigns - Bind player and server commands to signs

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

Make your own, customized Minecraft commands

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

Multiverse Inventories allows you to control who and what can cross world borders!

The multiworld plugin made by ferrybig

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

The one and only Troll Plugin you will ever need!

PermissionsEx

PowerRanks

Expand the capabilities of Skript with skRayFall

Tablist

CoreProtect

Stop Combat Log, Toggle PvP, No Kill Abuse, Newbie protection, Stop region border hopping

**Not Maintained** Display colors and text on name tags above the head.

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

Get custom items on join.

Provides essential server managment tools: World autosave, Backups, Auto restart, Plugin data purging, Plugin management and more.

FastAsyncWorldEdit

SetSpawn