Delux Board Conversations - simple and powerful forum engine. All functions of this forum have a flexible configuration that allows you to customize the forum to your specifications and requirements of your project. The forum template is easy to change, almost every element of the forum has a template that allows you to flexibly customize the output of any information. Despite the number of functions, it uses the minimum amount of resources on your server.

The Pro Chat Rooms - Avatar Chat is a browser based 'Virtual World' where users can design their own avatar character, create their own private rooms, explore the virtual world by moving their characters around, real-time chat and interact with other Avatar Chat users.

Salespage:
Multi-user chat room software written in PHP/MySQL/AJAX. Features unlimited chat rooms, customisable text, private chat, avatars, smilies, sounds, user profiles, multi-level chat room management (administrators & moderators), chat message history, IRC type commands, a wide range of optional plugins and much more.

Demo

My apologies for posting this as Newz, it will be the first and last time, I promise :)

I want to take this opportunity, to express my gratitude and pride of being a part of this community. It has become an essential and pleasant part of my life and I want to emphasize my appreciation to and for all of you, from the Admin, over the Journalists, Contributers, Staff, Members to the mere Comment Posters.
This site has come a long way and has always harbored nice surprises that brightened up my day and filled up my hard drive :D

It is a privilege and honor to be here, to share with all of you, interact with you and to enjoy the benefits offered so kindly. Keep up the good work people! <3

All my love,
Robert (Inforcer)

Simply the leading one-on-one chat component available for your website. A fantastic chatting experience and hundreds of features ensure that your visitors stay glued to your site. CometChat automatically integrates with your site's login, friends list, avatars, links as well as status updates.


demo
http://www.cometchat.com/demo

Candy is an open source multi-user javascript chat client for Jabber with beautiful default theme. It lets you join multiple rooms, start private conversations and get notified when new messages arrive.