> you're paying money to a third party for mojang's work Most servers are run using Bukkit [1] which is licensed under GPL [2]. The client and the protocols ar

> you're paying money to a third party for mojang's work Most servers are run using Bukkit [1] which is licensed under GPL [2]. The client and the protocols are Mojang's but the server's code is free to modify without such restrictions. [1] http://bukkit.org/ http://bukkit.org/ [2] https://github.com/Bukkit/Bukkit/blob/master/LICENCE.txt https://github.com/Bukkit/Bukkit/blob/master/LICENCE.txt