| Nortel had no choice; Top 500 supercomputer rankings
In light of the overall economy and Nortel's particular situation, analysts say the former telecom giant had little choice but to liquidate its assets as it attempts to restructure under Chapter 11. The world's two most powerful computers have not been surpassed in 2009, but the latest edition of the Top 500 supercomputer list shows a new entry in third place and continued dominance from the likes of IBM, Cray, HP and Intel. (6:00) Coalition formed to push fiber via ARRA
An impressive number of groups have banded together to push for building the Internet out in a particular way. New Internet2 CTO pushes multicast, IPv6
Next week, Randy Frank will take over as the new CTO of Internet2, an Ann Arbor, Mich.-based consortium of 200 U.S. universities conducting advanced networking research. Is Microsoft's 'Morro' Malware in Disguise?
Goodbye Windows Defender, hello Windows Security Essentials. The new antivirus and antimalware package that Microsoft's been working on for the past year is ready for its semi-official unveiling today. Get Windows 7 Performance on Your Current PC
Informal speed tests show that Windows 7 boots faster than Vista, and many users have reported that it "feels" faster during everyday operation. (Maybe that's because the User Account Control is more restrained in Windows 7 than in Vista and doesn't pester them so often.) But you can take some practical steps to goose Vista so that it will acquire some of Windows 7's pep. Here's how. IBM, Cray lead Top 500 supercomputer rankings
IBM, HP, Cray, Intel dominate Top 500 supercomputer list. Microsoft caps free security software downloads
Microsoft will limit the number of downloads for the beta of Windows Security Essentials, its new free antivirus software, when it posts the program later today. Cisco selling refurbished Linksys directly to end users
It appears Cisco has successfully made the market transition to selling refurbished Linksys directly to end users. Google fixes 'critical' security hole in Chrome
Google has plugged a security vulnerability in its Chrome browser that the company considers critical. Watching news spread on Twitter
Twitter in recent days has received much attention for the role it has played in keeping the world informed about what's going on in Iran. Events of that magnitude are rare, of course, so it is the everyday drumbeat of life -- and in some cases death -- that make up the bulk of Twitter discourse. Largest registered traveler service, Clear, craps out
The idea was good - help business travelers mostly zip through airport security checks. But those perks apparently weren't enough as Clear, the largest of the registered travelers service with over 165,000 members shut down last night. Italian court postpones trial of four Google execs
The criminal trial of four senior Google executives in a court in Milan, Italy, on Tuesday was postponed until Sept. 29 because the translator failed to show up, Google said Tuesday. June Giveaways
Cisco Subnet and Microsoft Subnet are giving away training from Global Knowledge to two lucky readers and 15 copies each of books on IPv6 security, the Cisco Secure Firewall Services Module, and Active Directory Domain Services 2008. Deadline for entries June 30. Network World on Twitter? You bet we are | 
We found 5 things to love and 5 things to hate about VMware's vSphere.
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