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.

ChatSecure (Gibberbot) is a secure chat client capable of firewall and filter circumvention, surveillance blocking and end-to-end encryption. It works with Google, Facebook, any Jabber or XMPP server, such as OpenFire or eJabberD. Unlike Blackberry BBM’s broken single key security, Gibberbot uses the Off-the-Record encryption standard to enable true verifiable end-to-end encrypted communications.

Free unlimited, private, secure messaging with your friends over Facebook Chat, Google Talk, Hangouts, Jabber, Dukgo & more! Works with Android, iPhone, Mac, Linux or PC.

ClickDesk provides a magic box of live chat, helpdesk, voice chat and social toolbar for websites.

Multi-platform and mobile messaging system.

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

Video chat with up to nine people at once, face-to-face-to-face.

Launch a Google Talk client for users who have recently visited your webpage to ask them for feedback.

Instant messaging service.

Imvite lets you chat with all your contacts from Yahoo Messenger, Windows Live Messenger, AIM and ICQ. It allows you to make free video and worldwide PC to PC calls, read news via RSS and also to watch multiple TV channels at the same time.

Open, secure, ad-free alternative to consumer IM services like AIM, ICQ, MSN, and Yahoo (see the IM quickstart).

Desktop application for browsing, email, chat, and online news

Helpdesk software for monitoring trouble tickets and service requests. Free versions available for charities and open source software projects.

Free live web streaming of video, management for video content, support for embedding and group collaboration on content creation.

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

mIRC is a friendly IRC client for Windows that is well equipped with options and tools

Plugin for Pidgin (internet messenger) that provides encrypted chat

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.

Instant messaging service.

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