Edit: Here's a summery of the posts below - and then some:
OBS: The internet is under malware attack constantly. These sites were clean when they were added. But this can change. So as always: be careful, use a firewall and updated anti-malware programs. Use a link scanner such as WOT, AVG Link Scanner, Finjan SecureBrowsing or SiteAdvisor.
PC news sites liked by users:
4sysops: http://4sysops.com/
95 websites: http://www.techradar.com/news/internet/95-...rk-today-639721
Ars Technica: http://arstechnica.com/
Ask the Performance Team: http://blogs.technet.com/askperf/
Bharat's Secuity Blog: http://bharath-m-narayan.blogspot.com/
Black Hat: http://www.blackhat.com/
Bright Side of the News: http://www.brightsideofnews.com/default.aspx
Bruce Schneier: http://www.schneier.com/index.html
Computerworld: http://www.computerworld.com/
CNET: http://www.cnet.com/
Dancho Danchev's Blog: http://ddanchev.blogspot.com/
Digital Inspiration: http://www.labnol.org/
Digg: http://digg.com/
Eches: http://blog.eches.net/
Engadget: http://www.engadget.com/
Engineering Windows 7: http://blogs.msdn.com/e7/
FavBrowser: http://www.favbrowser.com/
For Free on Internet: http://for-free-on-internet.com/
Freeware Genius: http://www.freewaregenius.com/
iCalvyn: http://www.icalvyn.com/
Gecko and Fly: http://www.geckoandfly.com/
ghacks.net: http://www.ghacks.net/
How-To Geek: http://www.howtogeek.com/
iDaveSpot: http://idavespot.com/
Istartedsomething: http://www.istartedsomething.com/
Japan Probe: http://www.japanprobe.com/
KezNews: http://keznews.com/
Life Rocks: http://www.nirmaltv.com/
Lifehacker: http://lifehacker.com/
MakeUseOf: http://www.makeuseof.com/
Mark's Blog: http://blogs.technet.com/markrussinovich/
Mashable: http://mashable.com/
Maximum PC: http://www.maximumpc.com/
Michael Aulia's Blog: http://www.michaelaulia.com/blogs/
Microsoft Developer Network: http://msdn.microsoft.com/
Microsoft Kitchen: http://msftkitchen.com/
Microsoft TechNet: http://technet.microsoft.com/
My Tech Quest: http://mytechquest.com/
Neowin: http://www.neowin.net/
NTdebugging: http://blogs.msdn.com/ntdebugging/
OSnews: http://www.osnews.com/
Paul Thurrott's SuperSite for Windows: http://www.winsupersite.com/Default.asp
PC Advisor: http://www.pcadvisor.co.uk/
PC Magazine: http://www.pcmag.com/
PC Pitstop: http://www.pcpitstop.com/
PC Pro: http://www.pcpro.co.uk/
PC World: http://www.pcworld.com/
Project Gutenberg: http://www.gutenberg.org/wiki/Main_Page
Raymond.CC: http://www.raymond.cc/blog/
SC Magazine: http://www.securecomputing.net.au/
Security Garden: http://securitygarden.blogspot.com/
Sizzled Core: http://www.sizzledcore.com/
Short Sharp Science: http://www.newscientist.com/blogs/shortsha...nce/technology/
Spyware Sucks: http://msmvps.com/blogs/spywaresucks/default.aspx
Tech Blog: http://www.techeblog.com/
Tech Support Alert (Gizmo's): http://www.techsupportalert.com/
TechBlog (Dwight Silverman): http://blogs.chron.com/techblog/
TechCrunch: http://www.techcrunch.com/
Techeblog: http://www.techeblog.com/
TechMixer: http://www.techmixer.com/
TechNet Magazine: http://technet.microsoft.com/en-us/magazine/default.aspx
Technically Personal: http://techpp.com/
TechRadar: http://www.techradar.com/
TechSnack: http://www.techsnack.net/
Tiplet: http://tiplet.com/
TG Daily: http://www.tgdaily.com/index.php
The Calendar of Updates: http://www.calendarofupdates.com/
The Next Web: http://thenextweb.com/
The Register: http://www.theregister.co.uk/
The Windows Club: The Windows Club: http://www.thewindowsclub.com/
Tweaking with Vishal (AskVG): http://www.askvg.com/
WhoisMadhur: http://www.whoismadhur.com/who-am-i/
Windows 8 News: http://blog.eightforums.com/
Windows Guides: http://mintywhite.com/
Windows IT Pro: http://windowsitpro.com/
ZDNet: http://www.zdnet.com/
Programs and download sites liked by users:
A-Z Freeware Launcher: http://a-z-freewarelauncher.yolasite.com/
Clean Softs Professional Association: http://cleansofts.org/
Depicus: http://www.depicus.com/wake-on-lan/
FileForum: http://fileforum.betanews.com/
Free Download a Day: http://www.freedownloadaday.com/
Freeware Files: http://www.freewarefiles.com/
Give Away of the Day: http://www.giveawayoftheday.com/
Karen's Power Tools: http://www.karenware.com/
Mess.be: http://www.mess.be/
NirSoft: http://www.nirsoft.net/
PortableApps: http://portableapps.com/
Secunia PSI: http://secunia.com/vulnerability_scanning/personal/
Softpedia: http://www.softpedia.com/
Windows Sysinternals: http://technet.microsoft.com/en-us/sysinternals/default.aspx
Art, music and video sites liked by users:
Billboard: http://www.billboard.com/#/
DeviantArt: http://www.deviantart.com/#
iLike: http://www.ilike.com/
Last.fm: http://www.last.fm/
SmugMug: http://www.smugmug.com/
The Internet Movie Database: http://www.imdb.com/
YouTube: http://www.youtube.com/
Tutorials and articles liked by users:
Computer Hope: http://www.computerhope.com/
Free Manuals: http://the-manuals.com/
Microsoft Fix it Solution Center: http://support.microsoft.com/gp/cp_fixit_main#tab0
Microsoft TecNet - 10 Immutable Laws of Security: http://technet.microsoft.com/en-gb/library/cc722487.aspx
Secunia - Secunia Advisories by Product: http://secunia.com/advisories/product/
Sysinternals Forums: http://forum.sysinternals.com/
Vista Forums: http://www.vistax64.com/tutorials/
W3Schools: http://www.w3schools.com/
Ars Technica on also. 
Hahaha! Added!