There is already a friends list, but I would like to make a GUI for it. In the meanwhile, you can access it like this: http://blog.8bitmmo.net/2013/07/friend-list/
Erik Kire Walters commented
Looks like this has been covered already. Add many friends and check regularly who's on for the best experience of 8bitMMO.
Ariyan The Great commented
Type /f to see the friend list
/friend add (player) to add frnd
type /friend list or /F in chat to see list of friends
We have a friends list, it's called Steam
Xio Rheims commented
I wouldn't mind seeing a GUI for it though.
There is a friends list with the use of Commands