The "Live Chat" link in the menu bar will now display how many active chatters there are.
In addition, I've added a "Live Chat" section to the stats at the bottom of the homepage, so you can see exactly who is online, and who is active.

Also new is the "!seen" command in live chat.
Simply type "!seen NAME" in chat, and "ADISC" (our chat robot) will tell you when that person was last seen using the chat.
When they next sign on, ADISC will also tell them that you were looking for them.

Note that you must be logged in to access the live chat.

Unrelated to the live chat, I also fixed a bug with the reputation system.
This bug was causing some rep rep scores to display incorrectly.
As a result of this fix, some rep scores may appear to change.