HEATKEYS

OneTeam - open source enterprise multi-network instant messaging client for Windows, Mac, Linux, iPhone and Firefox

Intra-Messenger : free messaging at office, server PHP/MySQL (opensource).

Squiggle is a free server-less peer to peer LAN messenger. Just download and run it and you're ready to talk to everyone on your LAN.

TechRepublic helps IT decision-makers identify technologies and strategies to empower workers and streamline business processes. The site delivers a unique blend of original content by IT professionals, peer-to-peer advice from the largest community ...

Windows 7 tips, tricks, tutorials, news, downloads, Internet Explorer, Windows Phone, Live, Office, Security Tips.

Best free software available all over the web. The free software categories include Windows Software, iPhone Applications, Social Networking Tools, and software installation videos.

IT Best Practices, How-tos, Product Reviews, discussions, articles for IT Professionals in small and medium businesses

AlternativeTo let you find new PC (Windows, Linux), Mac, iPhone, Android, Web/Online software based on applications you already know instead of useless categories. We make each application into a category. (AlternativeTo is sometimes called alternati...

Intranet Chat Software Informer. Featured Intranet Chat free downloads and reviews. Latest updates on everything Intranet Chat Software related.

Office SIP Server is free VoIP and Instant Messaging Software

osalt.com helps recommend a open source software alternative or replacement for commercial products and even shareware. Remember that open source software is also a freeware alternative.