Sun launched its Identity Server this week, which is positioned as the first component of the Liberty Alliance single sign-on scheme for web site authentication. When the Liberty Alliance was first announced, it seemed that its position was hopeless, as Microsoft Passport and AOL SNS already had their systems implemented and deployed. However, Passport and SNS have not by any means become pervasive, with this months survey finding fewer than 100 unique sites using these systems and Liberty now seems to have a plausible chance to compete with the established systems. 

This month is the first time that a Windows 2000 site has appeared in the  50 top sites which have the longest period of time since last reboot. www.byteandswitch.com has been running continuously since November 2000. When we first started graphing web servers uptime in the summer of 2000, many people were skeptical that a Windows machine would ever make the top 50. Perceptions change, and although two years is exceptional, several Windows 2000 sites have run for more than a year without a reboot. In the hosting industry, Microsoft partners Interliant and Devine each have sites that have not been rebooted in over a year, while Microsoft has also run several of its own sites for over a year between reboots.