If this isn't difficult to implement I think it will be neat to have.
Now I have longterm friends in another game who are sticking it out to the bitter end, facts are its dying and they need to jump ship.
An arena list on the website displaying how many are online and in which arenas,
A player roster, like where your friends are? link a BBS buddy list to the .sr command?? say someone in game does .sr it will show your name and location as BBS??
Access to the in game lobby from outside.
Scrolling text buffer on the homepage, Not any chat just kill/capture messages?
The benfefits would be that outsiders will be able to see how popular the game is and think "I want some of that action" without having to download.
Think of it as a method for free advertisement and improving community interaction.