B&S Storage Winners and Losers: Virtualization vendors were the "winners" in 2007

Bytes&Switches looks back:

VMware
VMware is not only the top IT success story of 2007, it is arguably one of the top business stories of the decade. A push for data center consolidation has raised the share price of EMC's brilliant acquisition by 195 percent since its IPO in August. VMware's embedded hypervisor for server motherboards could help up the ante for 2008.

and

XenSource
It's in the hottest IT space imaginable: virtualization. It's been bought by a deep-pocket parent, Citrix, which plans to goose competition with VMware in 2008 by rolling out a hypervisor embedded in hardware from server vendors. If that's not a winning combination, we'll blame Citrix.

Check out the whole list here.