Here are a few useful links you might enjoy, first some fun stuff:
James Lileks' sites, one of the finest writers alive today
Smithsonian Magazine Online
National Geographic Magazine Online
Apple's Movie Trailer Site: see em before you watch a movie! (warning: slow computer killer)
Cute Overload! Tons of cute stuff and critters
The Hubble Telescope Site with lots of images from the space telescope!
Some humor sites to tickle your funnybone (warning, some may have language content):
Frank J's IMAO
Engrish (Japanese and other asian signs and materials translated to English)
And some blogs you probably didn't know existed:
Eye Level, the Smithsonian Art Museum blog
William Shatner's blog site, although he doesn't update it much
The LAPD Blog, with updates on cases, requests for info, and more
Chris Farrell's Gaming Blog - board games, computer games, you name it!
Some smaller blogs you ought to take a look at but might have never seen:
Reformed Chicks Blabbing
Right Wing Sparkle
Anna Venger or is that An Avenger?
Stuck on Stupid Lies, or as his site says "It’s not what you don’t know that disturbs me, it’s what you know that isn’t true!"
Seixon - an American in Norway
Mostly Cajun, All American, and Opinionated
The Texas Rainmaker
Tom Grey, LIBERTY DAD!
Hollywood, Interrupted - a hollywood type going and doing what reporters fear or won't do in Iraq
Stand to Reason Christian Apologetics blog
Check em out folks, lots of places to go, things to read and interesting stuff to learn!
And don't forget to check the sites I have linked to the right hand side!