IPv6 Ready
http://konstantin.antselovich.com/archives/2011/04/18/ipv6-ready/ This blog is available on IPv6 as of today
Sysadmin
Configuring IPv6 on Redhat (CentOS) Linux — The IPv6 Experts .net
http://www.theipv6experts.net/2011/configuring-ipv6-redhat-centos-linux/ standard redhat-way (i.e. network-scripts) to configure IPv6 networking on RHEL/CentOS systems
XenDomUSupport - Xen Wiki
http://wiki.xensource.com/xenwiki/XenDomUSupport Guest Operating system support chat for XEN
Hotmail Case Study -- Hostmail migration to win2000 in the summer of 2000
http://technet.microsoft.com/en-us/library/bb496478.aspx a series of articles on TechNet describing and documenting hotmail migration to windows 2000/IIS 5.0/IISAPI from FreeBSD/Apache/CGI
Nam Et Ipsa Scientia Potesta Est » Blog Archive » Converting a UNIX .COM Site to Windows
http://www.softimage.net/2009/05/09/converting-a-unix-com-site-to-windows/ Notes from Hotmail team about conversion of hostmail apache/bsd -based webfarm to windows 2000. (they have converted CGI to ISAPI filters running on IIS 5.x )
Sender Score Reputation, Senderscore - SenderScore.org
https://www.senderscore.org/senderscore/ sendnder-score IP lookup tool
MultiRBL.valli.org - Blacklist, Whitelist and FCrDNS check tool
http://multirbl.valli.org/lookup/ search multiple DNSNL
[Gmail.com operator] (in comments for) A note for Hotmail users [LWN.net]
https://lwn.net/Articles/432813/ “jwb” – one of postmasters of gmail.com commenting on lwn
Flow Control 2.0 — IP Reputation Tool - Sendmail.com
http://sendmail.com/sm/resources/tools/ip_reputation/ IP-reputation tools from Sendmail.com (spam-score of an IP address )
Windows Live Hotmail Postmaster
http://mail.live.com/mail/postmaster.aspx Hotmail postmaster web page