During my studies, I had some lectures about Ajax driven web-services in the second or third semester and I thought, that I can build something like that on my own. So I started this little chat project and gave it a try.
(Thats also where the name comes from – AMPChat – AjaxMysqlPhpChat)
The working mechanism is the following (simplified):
The chat is available under the following link:
The whole thing is open-source. You can find the code here: http://looke.ch/amp/source.php