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By Bob Violino

Although still a relatively new technology, many analysts expect virtualization to become a dominant data center technology within three years. And no wonder. Despite some challenges—which include a lack of standards, tools, and sound management practices—virtualization has the potential to make data center operations more efficient then they've ever been before. But where should companies looking to deploy virtualization, or to expand their existing efforts, turn for their systems needs? Here's a look at three of the market's leading vendors and their virtualization strategies.

VMware: What Will It Do Next?

Microsoft: Behind Its Big Virtualization Push

Citrix: Looking To Virtualization's Next Stage