http://blogs.technet.com/markrussinovich/archive/2009/11/03/3291024.aspx about windows SID issues and machine cloning: explains what windows SID is, who it is used, and why you should or shouldn’t change it when you image-clone a windows machine
http://files.agoragames.com/jason/railsconf09/ notes about [web] infrastructure monitoring from well-known game company (call of duty, gitar hero).
http://blogs.amd.co.at/robe/2008/12/graphing-linux-disk-io-statistics-with-munin.html tells you about a plugin (a perl script ) for munin that will collect linux disk IO stats and send it to munin for pretty graphs.
http://sial.org/howto/openssh/publickey-auth/ notes on setting up SSH pubic key auth
http://www.fishpool.org/post/2008/03/31/Optimizing-Linux-I/O-on-hardware-RAID explains use linux IO scheulers with presence of smart RAID controllers.
http://www.internetpulse.net/ website that monitors status of traffic exchange between Tier-1 providers
http://www.petri.co.il/setting_mailbox_limits_over_2gb.htm how to set mailbox storage limits over 2GB in exchange 2003
http://mustech.net/2007/02/20/windows-vista-webmail-owa-fix-for-internet-explorer-7-five-step-fix allow IE7/IE8 to compose mails in OWA
http://www.opennet.ru/base/net/adsl_shaper.txt.html shaper script for ADSL< -->Ethernet gateway
http://www.mxtoolbox.com/blacklists.aspx website that does blacklist lookups.