PUBLIC MARKS from cadu with tags ajax & im

JWChat - Jabber Web Chat

In site messaging (IM) with AJAX and Java

ILoveIM.com is a web messenger application that allows you to stay connected with your favorite Instant Messenger almost anywhere. You need a computer with just a browser only. There is no need to download and install any software or Java plug-ins into your computer to use ILoveIM.com Web Instant Messenger. ILoveIM.com provides friendly, light and very easy to use web-based interface with almost all core features from the original Instant Messenger. Another great benefit of our Web Messenger - it works behind a firewall or proxy servers. Use our Web Instant Messenger to chat with your friends everywhere!

alitalk is a powerful web chat instant messenger system, based on php/javascript for all websites.