Bukkit

Advanced CombatLog

MobBounty v4.2 [CB1337]

Powerful Levelable Weaponry for Your Role-Playing Server!

Spyer bundle for Bukkit, the invisibility tool for moderators and players.

Get URLs from clickable sings

This plugin adds a variety of magic spells to the game.

A complete mob and entity management plugin for your craftbukkit based server.

Craftable blocks that are immune to explosions and harder to break.

Prison Break - The Most Advanced PrisonBreak plugin ever.

Fire mobs with bows at your will!

Allows user to enter Explore Mode, allowing flight but no world interaction.

DropFactory

Allowa players to create and use all new crafting system

Piston Can Move Obsidian.

Replaces baby zombie/husk/drowned spawn with normal zombies

Crates

DeepNick

A plugin that makes farming less tedious

Some options for iDisguise

MobRepeller is aplugin that keeps your areas peaceful in heavily-modded worlds with Totems.