among chat

csChat-R-Box is an easy to use CGI chat script.

Live chat software for customer service and online sales through website.

Anonymous Chatterbox allows you to install a simple chat system on your site.

Integrate DotNetNuke with Free Live Help Chat Software.

VoiceChatter is a free, cross-platform voice communication (chat) application.

Instant LAN Messenger for Text, Group & Voice Chat, File transfer within Office

Monitor and Sniff AIM chat conversations on all computers in network

Coolsmile is a friendly chat client software

WinPopup Gold, send and receive instant lan messages, chat, and much more.

A multicast chat program. No need for a server, nice for LAN parties.