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I use RSS feeds on my iGoogle homepage (Engadget, Valleywag, Technorati, Gizmodo, Appleinsider, and boingboing). I also listen to a lot of pod/vidcasts like TWiT, Textra, Cranky Geeks, GigaOm, Diggnation, and Tekzilla.

And of course I can't go an hour without checking Digg.
 
Engadget and Gizmodo, primarily. I used to read The Register and Inquirer, but as the years went on, I decided that I like reading about and seeing pictures of shiny new gadgets more than I care about technical details of future products and hearing about what's going on with all the various companies in the business.
 
I used to really like Digg, but that site it almost completely worthless now. It's either email-forward type material (AMAZING pic at #1, etc etc), or Ron Paul spam. Great.

Now it's just MacRumors, with a smattering of Engadget mixed in for good measure.
 
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