AJAX just wants to chat with you.
Dahan Abdo created a AJAX based chat room in ASP over at Code Project. Dahan example has administrative functions and login validation to prevent the same nickname from logging in. In his example, he limits it to one chat room per website (or virtual directory), however, lets see if someone can modify this code to have multiple chat rooms. Another possible modification would be getting the example to work with the ASP.NET AJAX framework.