Bukkit

Admin Werkzeuge (eng. Admin tools)

This plugin allows you to add achievements to your server

Rank List

Inspect ender chest and inventory of players and entities.

Give info book for players

This plugin allows you announce/send Titlebar or Subtitlebar as message or on join/firstjoin (also ANIMATED TITLEBAR)

Hides entities and tiles serverside to improve client fps

Shows Tracks/Paths on the Livemap with Dynmap

ServerStatus

Display Towny towns and nations on Dynmap maps, with live update

Death Messages

See how your statistics compare with others on your server!

A easy to use PlayerCounter edit-plugin

Track ChestShop sales and get notifications

Track those griefers like a bird of prey!

Live-chat translation plugin for Minecraft servers, using the Yandex translation API

Plugin that logs player/IP combos and allows for a nice developer API to easily retrieve that data

Dynmap-Structures

Legacy

Welcome players with first-join, join, and quit messages, publicly or privately, via Chat, Titles, Action Bars, Boss Bars, and Sounds. Permission-based and randomizable. Supports PlaceholderAPI, AuthMe, MiniMessage, and popular jail and vanish plugins.