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Meebo is integrated, all-in-one instant messaging (IM client) that connects you with your friends everywhere. It supports a large number of popular servicesand connects you to MSN, Yahoo, AOL/AIM, MySpace, …

Facebook Chat IM is a Desktop Messenger for Facebook. With it you can chat with all your Facebook friends directly from your Desktop. It has a simple and easy to …

Tencent QQ, generally referred to as QQ, is the most popular free instant messaging computer program in Mainland China, and has over 856.2 million users. In April 2010, QQ.com ranked …

R&Q is a little instant messaging client for the ICQ protocol, fork of Rejetto's &RQ. It is simple, fast, takes a little more than 1 MB disk space and doesn't …

MDC (Multiple Direct Communicator) is a universal multiprotocol messenger supported by several operating systems including Windows, Linux and MacOS X, and protocols of ICQ, Mail.Agent, Jabber and others. It features …

Banckle Enterprise IM is a FREE and completely secure business collaboration solution for video chat, instant messaging, video call and sharing whiteboard with your team members anytime, anywhere. Not only …

Bitmessage is a P2P communications protocol used to send encrypted messages to another person or to many subscribers. It is decentralized and trustless, meaning that you need-not inherently trust any …

Brosix is a secure Instant Messaging and collaboration tool, ideal for everyday communication for business and leisure. Two different versions of Brosix give you the opportunity to choose the version …

TCOne Netsend Lite is a handy and reliable utility designed to enable you to send messages between computers within your network. The application uses the Windows messenger service which makes …

VoxOx is the first ever Universal Communicator Service that manages all forms of cross-media communication for consumers. Signup *requires* user provide SMS capable mobile number. It is the only service …

Spark is an Open Source, cross-platform IM client optimized for businesses and organizations. It features built-in support for group chat, telephony integration, and strong security. It also offers a great...

Sim-IM is a multiple protocol instant messenger for MS Windows, GNU/Linux, FreeBSD. Sim-IM supports Jabber/XMPP, Google Talk, ICQ and AIM (Oscar), Yahoo! Messenger and Microsoft Messenger (MSN) protocols....

Allegedly "cheap" phone calls with Jumblo. WARNING: expect to have payments disappear with zero recourse and have "free" minutes widely unavailable like any other betamax clone scam.

Instantbird is an instant messaging client based on Mozilla XULRunner and the open source library libpurple created by the software developers of Pidgin. Instantbird is free software available under the …

Palringo is the lightweight Instant Messaging client for desktop computers. Express yourself in chat with emoticons and smileys to show your friends how you’re feeling. Send voice messages at the …

QIP Infium is a multiprotocol instant messaging client. It supports ICQ (OSCAR), Jabber (XMPP), Mail.ru Agnet (MRA), IRC, XIMSS, SIP, Twitter, Facebook and other.

ICQ is one of the oldest instant messengers. First developed by the Israeli company Mirabilis, sold to AOL, sold again and currenly owned by the Russian "mail.ru" group (known for …

Psi+ is a development branch of Psi IM XMPP/Jabber client. Psi is a cross-platform powerful XMPP/Jabber client (Qt, C++) designed for the Jabber power users.

Kadu is an open source Jabber/XMPP and Gadu-Gadu instant messenger client for Linux, *BSD, Mac and Windows.

Pidgin - бесплатная программа для мгновенного обмена сообщениями. Сохраняет переписку между контактами, позволяет сортировать контакты по группам, создавать чаты/конференции. Доступны установка аватаров, обмен файлами, изменение шрифта, смайлы, метаконтакты и многое …

AIM keeps you connected to the people you care about. Connect with friends and family and keep track of status and presence updates in real time. .

Coccinella is a free and open-source cross-platform instant messaging client with a built-in whiteboard for improved collaboration with other people.

Meebo for the Desktop. It uses Adobe® AIR™ to place meebo home page on the desktop in its own window.

Pinger lets you text and talk free with the people you care about most, anywhere on the planet. Tap a picture and you'll see all of your communications—texts, pics, calls, …

Subway is a web-based IRC client with a multi-user backend and a JavaScript-heavy UI. Frontend/backend communication is done with websockets (or best available fallback where not available). The backend...