This is the link to the SuJu forum. Click HERE to enter the site.
From there you can become wether Friend, Super Friend, Baby ELF, Princess ELF or Queen EL or EverLastingSTARS. (regarding the number of your post)
You can foruming with SuJu fan all around the world. Plus, it is free and you must register first.
p/s: My name is Sungmin 4ever 🙂