A universal instant messaging (IM) program
Development toolkit for Web Services and XML data bindings for C & C++
VICIdial Contact Center Suite
UFONet - Denial of Service Toolkit
PHP driven chat forum
The Free & Popular FLARUM Web Software in a Complete Virtual Machine
Standalone chat system developed in php, mysql and javascript
IrcAppender forwards important log4j messages to an IRC channel
Low-latency, high quality voice chat for gamers
Open-source social network CMS and mobile apps.
Simple open source php based HTML5 rich web chat system
MSN compatible messenger application
Free social network.