I would love to see WifS add the ability to see who is currently logged in to the world. It could be an IM interface like Facebook where you have a little window telling you who you can chat live with and when you send a message to the other person it pops up on there screen so they can reply without having to go to and stay on the trade chat screen. This would mean you can each have the other teams roster displayed and you can chat live about a possible trade. I think anything that encourages live interaction helps the individual world as well as HBD as a whole because it would then be easier to make trades. This would especially help on trade deadline day and/or when trying to deal with multiple teams at the same time. 

Define "logged in".

I typically keep a tab on my browser up at all times logged into this site.  Doesn't mean I'm actually sitting there in front of the screen.

I mean logged in. As in the user has an active page open in that particular world. That's why I used the Facebook example. If you are logged in it says you are online. If you are not active it says you are away. I don't think it would be that hard to incorporate and it would really make things easier to 'chat live' as opposed to the current 'trade chat' system where you send someone a message and wait for them to check in to their trade chat and then they respond. The current system could be kept and used as it is now but really it would be a secondary means of communication for those that are actively looking to make deals.