JBuddy Messenger is an instant messaging client designed for everyday business use. It supports public instant messaging networks including AIM, ICQ, MSN, and Yahoo. With a paid license, JBuddy Messenger adds support for Google Talk, IBM Lotus Sametime, XMPP/Jabber, Microsoft Office Communications Server (OCS 2007) and Live Communications Server (LCS 2005), and the JBuddy Message Server. JBuddy Messenger offers the concept of a Meta-Buddy (Trillian calls them Meta Contacts), which is an aggregation of the presence of multiple screen names under one buddy. Also, buddy groups of the same name across multiple accounts can be visually merged to simplify large buddy lists.
JBuddy Developer Tools is a robust suite of APIs and software development frameworks for creating instant messaging applications and solutions. It is comprised of the JBuddy SDK, JBuddy Bot Builder, and JBuddy Bot Framework. The JBuddy SDK is a unified IM client API supporting public IM services including AIM, ICQ, Windows Live (MSN), Yahoo Messenger, Google Talk, and enterprise IM servers including Lotus Sametime, Microsoft Live Communications Server (LCS 2005), Microsoft Office Communications Server (OCS 2007), and XMPP (Jabber) servers. The core JBuddy SDK implementation and APIs are available in Java while a tight C++ wrapper exposes the JBuddy APIs for Microsoft COM and .NET. The JBuddy Bot Builder and JBuddy Bot Framework are built on top of the JBuddy SDK and greatly simplify building, testing, and deploying powerful IM Bots.
Scopserv Communicator is an audio/video Internet phone and instant messenger that supports some of the most popular VoIP and instant messaging protocols such as SIP, Jabber (XMPP), AIM/ICQ, MSN, Yahoo! Messenger, and a whole lot of other useful features. ScopServ Communicator is based on the SIP Communicator softphone.
nimsg (the Network Instant MeSsenGer) is a compact, server-based chat program. Its features include the ability to chat with more than one person at the same time, the ability to post multiple times in a row, and the ability to let users choose their in-chat nicknames. It can be used as an alternative for IRC, for those times where you just want to have a small, local chat room.
SaluSafe is an encrypted email, chat, and file storage and sharing system. Your email and files are highly encrypted end-to-end, and cannot be intercepted by any third party. It was built from the ground up for security via strong cryptography, and is not just another security wrapper on top of an existing email solution.