WorldPlus v1.3 - WorldPlus is a plugin that blocks nether/theend normal portals to users you don't want by the use of permissions! For example, if you want only your VIP's to access the nether world you just need to give worldplus.nether permission and then no other group will be able to access this nether world. You can do this with TheEnd too! Just check out our BukkitDev Page for more info. Bukkit Dev:http://dev.bukkit.org/server-mods/worldplus/