Social Source Commons

Java chat server software

AOL instant messenger

aMSN is an open source MSN Messenger clone, with features such as: display pictures, custom emoticons, multi language, webcam support, full-speed file transfer, chat logs, conferencing support, event alarms and more.

Campfire is a web-based group chat tool that lets you set up password-protected chat rooms.

Search engine that allows you to tchat with a human to help in your search.

ChatSpace Community Server contains a complete array of real-time community and support applications including chat, message boards, instant messaging, live events, and queued help

Multi-platform and mobile messaging system.

An opensource Voice over IP phone allowing you to do free calls over the Internet.

Google Talk enables you to call or send instant messages to your friends for free, anytime, anywhere in the world.

iChat is an instant messaging application

Online multi-client chat software.

Free voip, video, and instant messaging

Open source instant messenger service and voip client for Jabber.

Web-based IM service that aggregates multiple messengers on one page

Cross-platform, multi-protocol, IM and presence awareness aggregator.

Tool that combines Skype with MySpace.

Hosted online chat system.

Portable Gaim is the versatile Gaim instant messaging client packaged as a portable app, so you can take your IM settings and buddy lists with you. The Off-the-record plugin is also included for secure, encrypted messaging

Talk Online anywhere around the world for free, do live video conferencing or Transfer Files of any size with complete security.

Free/cheap Internet telephony and handy IM tool.

Trillian™ is a fully featured, stand-alone, skinnable chat client that supports AIM, ICQ, MSN, Yahoo Messenger, and IRC.

Instant messaging service.

Video conferencing tool that allows you to chat and share files with up to nine people. It even includes a jukebox.