Vendors feel heat to cool hardwareBy consolidating servers, or moving to blade servers, you can pack tremendous computing power in a small space. The downside is that all that computing hardware requires power - and it can generate tremendous heat. Here\u2019s what others are doing to cope.Microsoft to bolster Software Assurance programIt\u2019s been several years since Microsoft moved its best customers to the Software Assurance program - and since then, it hasn\u2019t always lived up to expectations. The company is now planning some changes that it hopes will make customers feel they are getting more value for their money. Get the details.3Com brings outsider in as new CEO3Com tapped R. Scott Murray as its new president and CEO, taking over immediately for retiring chief executive Bruce Claflin. Click here for more.Start-up adds oomph to VMwareVizioncore, a start-up backed by management product vendor Quest Software, says it can eliminate the complexity of using VMware virtual machines for disaster recovery. Get the details in our story.Redback posts first profit in 5 yearsRedback Networks posted its first quarterly profit in five years. The maker of IP service edge routers and broadband aggregation systems recorded fourth-quarter earnings of $300,000, or 1 cent per share, on revenue of $48 million. Click here for more.Network World Radio: Festoon connects GoogleTalk and SkypeThis week we talk with Max Montgomery, director of marketing for Santa Cruz Networks, about his company's multipoint video service for Skype and Google Talk called Festoon. We also find out why Santa Cruz is closing down its business-oriented Viditel service at the end of the month. Listen in.Network World celebrates 20 yearsWho do you think had a bigger impact over the past 20 years, Internet pioneer Vint Cerf or the creator of Ethernet, Bob Metcalfe? What piece of technology can you not live without, even though 20 years ago you in fact lived without it? Help Network World celebrate its 20th anniversary by participating in a quick, 10-question survey about forces that have shaped the industry. Watch for the results in the March 27 issue.Get all of today\u2019s news, updated all day long on the NetFlash news page at NetworkWorld.com.Today on Layer 8, where the sun always shinesWe get our Caption Contest groove back; take a look at a the ultimate Trekkie living room; download new hit shows from iTunes; get a kick out one would-be victim's sweet revenge; and finally, figure out why American kids are falling behind. Click here for all that and more.