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Antepos OPN System XT XMPP-based IM server with good federation hooks (www.antepo.com)

IBM Lotus SametimeIntegrated IM and Web conferencing platform with broad platform support (www.IBM.com)

Microsofts Live Communications Server 2005Windows-based IM platform with tight integration with Active Directory (www.microsoft.com)

Omnipod Inc.s Professional Online Desktop Hosted IM service with support for logging and archiving (www.omnipod.com)

Wired Red Softwares e/Pop Secure Instant Messaging IM application that can be configured with integrated desktop and application sharing (www.wiredred.com)

Technical Analyst Michael Caton can be reached at michael_caton@ziffdavis.com.