Some of my favorite web links:

SlashDot -- Geek news site, slanted and chaotic, but fun. 

Memepool -- If SlashDot is slanted, Memepool is twisted and wrong.  It's a collection of oddities from all over the world. 

DPreview -- Phil Askey's Digital Photography Review site.  Home to the much maligned Canon EOS 10d Forum I frequent. 

The Canon Digital Learning Center -- Hosted by PhotoWorkshop, it's a great site for beginning photographers like me. 

Luminous Landscape -- Great tutorials on how to get the most out of your photos. 

Woot.com -- Great geek auction site.