Getting familiar with virtualization, especially VMWare's take on the technology is a wise decision for anyone planning on starting or continuing a career in IT.  Even if you never end up hosting your own cluster of VMs, being aware of what they are capable of will help you deal with vendors and salespeople.  It is now even easier to expand your knowledge of how multiple virtual machine clusters can communicate as VMWare has made their tool free to use.  This does assume you have VSphere and ESX based clusters but as that software is also available at no cost, that is not a tough prerequisite to meet.  Check out the links from The Register to see about creating your own interlinked cloud, or perhaps hooking into a friends.

"VMware has released version 2.6 of its vCloud Connector tool, and dropped its price to $0. At current exchange rates that's £0 and $AUD0, for UK and Australian readers."

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