Bukkit

Uses the scoreboard system to announce restarts in a better way

A simple plugin for bans, that puts YOU in control.

PluginHider - Hide's your plugins from theifs!

Allows you to automatically execute commands if a player enters/leaves a WorldGuard region.

Chunk based server backup and restoring plugin

Whitelist

Create regions (built in in-game region creator) and execute commands on region enter or leave

MTP Plugin-Fill

Easy and clean way to restore inventories

Events Manager

MagicHealth

An awesome plugin that creates a moderator support system.

A better server reloader!

StaffMenu GUI

Define a rectangular border for each world. With the ignoreborders permission players will be able to go beyond the border.

AdvancedPets

A friendlier alternative to kick

Runescape/WoW Style Item Banking

PlayerWarp allows your Players to create Warps with their Names.

Send commands and messages as other players.