I was thinking it would be nice to treat the who's online box a little more like the AIM buddy list. I don't think the chatbox gets much use right now, because it's hard to know when someone else is there. Here's how it might work.
|Jane logs on and sees Bill's name in the Who's Online box. She clicks his name and a form appears. She enters a greeting, clicks send and enters the chatbox.
Bill is happily reading recent posts, on his next page view, a message appears at the top of the page stating "Jane has invited you to the chatbox. He can ignore Jane, or click the chatbox link and start discussing.