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Zimbra provides open source email and calendar groupware software, Zimbra is a popular choice for Linux and Mac OS X email servers and supports SaaS deployment, appliances and virtualization platforms.

HowtoForge - Linux Howtos and Tutorials

YouTube is a place to discover, watch, upload and share videos.

HardForum HardOCP Enthusiast Computer Hardware Reviews Advice Community

Ubuntu, Linux and other articles about Open Source with Joomla! - the dynamic portal engine and content management system

Meet online with virtualization, vSphere, vSphere4, vCenter, ESX, ESXi, VMware View and Fusion experts who use the technology every day. Share your experiences to gain exposure and strengthen your relationship with the community and VMware.

Real Time Enterprises, Inc. Support Website. Technical Information, HOWTO

LinkedIn strengthens and extends your existing network of trusted contacts. LinkedIn is a networking tool that helps you discover inside connections to recommended job candidates, industry experts and business partners.

Vimeo is a respectful community of creative people who are passionate about sharing the videos they make. We provide the best tools and highest quality video in the universe.

Newbies Linux guides on installing Linux and networking setup with Internet and LAN servers administration including Web, e-mail, proxy, firewall, file, and print servers. Beginner tutorials on Linux basics, networking, compiling software, and securi...