We recently launched our php based web-collaboration software and would love to have some reviews.

Gixaw Power Chat is the most feature-rich group chat for any website. Powered by AJAX, there is no additional plugin required before your visitors can start chatting and sharing files/videos/images/music . Gixaw Power Chat is the right software for all your website communication needs and takes just minutes to install. The key features are: Easy File Sharing, Live Image Previews, Powerful Moderation, Dynamic Groups/Permissions, Past Chat Transcripts, Tabbed/Resizable Interface, Custom Skinning, User Profiles, Sound Notifications, Flood Control, Unlimited Smileys, and alot more...

Please visit http://www.gixaw.com/ and give us reviews on how you find our product. Thanks!