Enlaces/Links

Blogs:

http://www.petri.co.il/
http://4sysops.com/
http://www.nirsoft.net/
http://hackaday.com/

http://undercpd.blogspot.com/ :: Windows Server, Windows Small Business Server
http://josepros.blogspot.com/ :: Virtualizacion VMware
Virtual PC Guy :: Virtualizacion Microsoft

Hardware:
PCs
http://techreport.com/
http://www.tomshardware.com/us
http://www.anandtech.com/

Tutorials:
Windows
http://www.7tutorials.com/
http://lifehacker.com/tag/windows/?p=2
http://www.howtogeek.com/

Linux
http://www.faqforge.com/
http://www.howtoforge.com/

VOIP
http://www.sinologic.net/
http://www.voipnovatos.es/
http://ualtech.wordpress.com/
http://nerdvittles.com/

Networking
http://www.smallnetbuilder.com/

Freeware:
http://www.freewaregenius.com
http://www.techsupportalert.com/

Malware:
http://www.microsoft.com/security/portal/Definitions/ADL.aspx