Bukkit

Players can be cops

[Spout] Hide player names!

RPG

Custom Mounts

Create interactive NPCs using armor stands with custom commands and easy editing for your Minecraft server.

HardcoreMode

A simple plugin which allows you to date/marry players on servers

MagicWands

Bring the concept of regenerating shield "health" from FPS games to Minecraft!

Definable restrictions based on xp levels

Bukkit plugin that lets players sit anywhere with a simple command, enhancing roleplay and immersion.

SwearJar

Supplydrop

Arenax1

Magic Paper to heal you when you're hurt!

Kill4Reward

MinePay - Pay Players For Mining Ores!

Custom Chat Channel Plugin

mcMMO Levelup reward

The Best Plugin for Integrating Adventure Maps onto your Server