Bukkit

WorldPos saves your last position in any world to provide continuity

Free donation alternative

VoteCheck - Vote Reward Plugin (Votifier and MinecraftHangout.com)

MCBans A Global Banning Plugin

Mineload

Make money from your Minecraft server by running ads!

SELBans - Better banning Managment

MCbb

bPermissionsWebGUI

Collect comprehensive statistics about your server and players

Plugin for MCPanel, control your server when you're not home.

GoogleAnalyticsPlugin

Track those griefers like a bird of prey!

PlayerLink is a simple, lightweight plugin designed to make sharing URLs related to your server easier.

MySQL In-Game Website Registration - Users will not be able to steal another's IGN

A way to track per-player or per-group activity

MediaSocial

The ultimate Bukkit-XenForo synchronisation plugin

Allows commands to be executed as console.

Backs up world backups to Google Drive