4talk Messenger - 4talk is a free cloud messaging service for mobile devices and desktop computers
Swift XMPP Client - Swift is an elegant, secure, adaptable and intuitive XMPP client, with features that make it...
aMSN - aMSN is a free open source MSN Messenger clone.
Trillian - Trillian is a decentralized and federated instant messaging platform that lets your whole company send private and group messages, keep tabs on what co-workers are doing, share files, and much more.
Wrike - Wrike is a flexible, scalable, and easy-to-use collaborative work management software that helps high-performance teams organize and accomplish their work. Try it now.
Secure Instant Messaging - Instant messaging over IP with encrypted data