Bukkit

Simply set a time to shutdown/restart daily

PlayerSpeedAPI is system for managing players speed across plugins.

GiantItems

Allows you to say anything from player. (command too)

Mr.wolf

ReserveMe - Let your own players reserve their own slots!

Daily Free resurrection chance for every players

Informs you if a player is AFK when you say all or part of their name.

Allows players to collect spawners for a customizable fee.

NoDragonPortal - Block those pesky ender portals!

Keeps detailed profiles of players

Change Gamemodes on signs!

zLobby

A small yet effective warps plugin

Primary core for AMP (Addramyr's Minecraft Plugins)

Simple plugin for reporting cheaters.

Fixes players not being kicked when the vanilla whitelist is activated.

Run any command at random

RealZone

Replace messages that contain bad words with a custom message.