Bukkit

This plugin disallows people from opping others if they are not in the specified config.

Detailed auction house using the team menu.

Manage your join event with custom join message, firework and lock a player's ip

ChestShopDB

Many More Crafting Recipes for the normal Minecraft Items

jtMiniAdmin

Can be translated into various languages

Shows potion effects on scoreboard

Allows players to bind item such that they are destroyed upon death and drop.

A lightweight way to warn your players.

MarketList will help the other players know what you need, and what you want to sell.

AntiRAID

Stop Ocelots from Spawning!

Plugin with a lot of functions

Stops the action of Tnt Placement,fire +more

TakeSpawners

The most important server functions freely configurable!

Get updates when players perform commands.

Traffic-Light

Player GUI