I usually don't read these sites, sometimes I have a look into Slashdot, but my mornings start with SecurityFocus and LinuxSecurity.com.
I find myself checking digg.com more often than slashdot, though not every day. Maybe it's not exactly regularly, but I still voted digg.com since I think I visit it often enough not to say "neither".
What I do check daily is LXer.com.
I lurk on digg pretty much 24/7 and check slashdot occasionally
reddit. I'm addicted so bad that it's like I've got a psychological problem or something, like that disorder where you have to wash your hands all the time. It's just that when you have a choice of staring at a progress bar, or want to reward yourself like eating candy when you've accomplished something, it's just so easy to hit that reddit bookmark in Swiftfox. The problem is, once I arrive there, I enter like another world where I lose my grasp of the space-time continuum. I am literally lost there for hours.