Thought I would check and see what are people's favorite sites (other than STC of course
Here are some of mine:

http://www.cnn.com/ (I like to know what's happening in the world...well, sometimes)
http://cylinders.library.ucsb.edu/index.php (think I got this from someone here)!
http://integrals.wolfram.com/index.jsp (I don't use it so much these days, since I just run Mathematica off the workstations)
http://en.wikipedia.org/wiki/Main_Page (it's good, although of course be careful of all you read)!
http://xxx.lanl.gov/list/astro-ph/new (new papers in astrophysics, a must read...for those of us in astrophysics anyway)!

cheers,

-avatar!

I like to be updated everyday about videogames, so I mostly read vg news websites and other vg related websites. Here are some that I like:

http://www.gamefaqs.com
http://www.the-magicbox.com
http://www.kotaku.com
http://www.neogaf.com/forum

You probably all know about them though...

And here's something that might help some of us http://www.backloggery.com/

um...

rpgfan.com

also

digg.com
failblog.org
Jim Breen's JDIC (on Monash.edu server)
www.vgmdb.net

www.ratemybunny.com
www.pullipstyle.com

edit.. how could i forget...

http://www.metafilter.com/ (particularly http://ask.metafilter.com/)
http://www.boingboing.net/
http://consumerist.com/
http://lifehacker.com/
http://www.schneier.com/blog/

Ask MetaFilter is probably the site that I most enjoy reading.  It's basically a communal advice column whose contributors have an amazing breadth of experience and depth of knowledge.

Homepage: Drudge Report

FARK
Magic Box
NCSX (for the oddball goodies and, sigh, the softcore porn statue/figure days)
Soundtrack Central forums
Ames Fan Club / forums
Flickr
Metacritic
DC Resource (digital cameras)

In addition to reading up on the latest gaming news, I also like to delve into the past to see what I may have missed: http://hg101.classicgaming.gamespy.com/

All my other favorite websites have been mentioned already.

I usually check these on a daily basis:

SEMO (no surprise there...)
Kotaku
Yahoo (for the news)
CNN (also for the news)
Engrish.com (I love me some bad English)
STC

That's all I can think of at the moment. I"m sure there are others, but they are eluding me right now.

YouTube and LiveJournal.

Gonna stick with non-VGM stuff here...

Visit daily:
http://news.yahoo.com (I prefer to read AP stories over CNN's excessive dramatization)
http://www.digg.com (Great way to keep up with feature stories from around the web and non-headline news)

When killing time:
http://www.darkhorizons.com (Movie news and my most trusted review source)
http://www.joystiq.com (Though I rather despise the blog format)
http://www.salon.com (Good source for non-idiotic editorials)
http://www.slate.com (ditto)

http://2ch.net/

I also prefer reading AP (Associated Press) articles as the main source for news.

Homepage: www.google.co.jp

Webpages:

http://forums.worldofwarcraft.com
http://(WoWGuildWebsite).org
http://www.mmo-champion.com
http://www.decoymusic.com
http://www.soundtrackcentral.com/forums … n=show_new
https://www.(workemailportal).org
http://www.amazon.co.jp
http://gmail.google.com

That's 90% of my Internet activity

For Asian movies:

Korean Film Org
Kung Fu Cult Cinema
HK Flix
Yes Asia
Asian DB (great for research, not great for buying)

For news:

CNN
Science Daily (This is my home page.)

For science fiction:

ISFDB

For science books:

Scientific American Book Club

Ebay and amazon are used extensively as well. You already know about the vgm sites.