Interesting, microsoft.com has longer uptime than redhat.com, as of today.
33 days:
http://toolbar.netcraft.com/site_report?url=http://www.redhat.com
56 days:
http://toolbar.netcraft.com/site_report?url=http://www.microsoft.com
Gee, that's almost twice as long, isn't it?
thats not an os to os comparison, who do you think is running a bigger cluster for their site??