Bukkit

Allows you to view any player's previous usernames quickly in-game.

ToolBox

A new approach to Vanilla

Allows you to Toggle fall damage

ChatConfig

Law

JoinFirework

Blocks certain words and phrases from the chat

Create optional tags for your players

Allow non-white-listed players to play on your white-listed server, but only when one of your trusted players is online!

InstantChatClear

A lightweight anti-spam chat plugin

Get PotionEffects From a GUI!

CopyBook

Block your players from dropping and picking up any items!

Simple system to Prevent some blocks to be used / placed

Player data collecter for the Minecraft Server Alliance group.

Have chat-restricted WorldGuard regions in your server

Admin Punishments Set

Tired of newcomers asking for staff? Here's the perfect plugin.