All good points--I don't read Huffington Post or Salon or similar sites every single day, but do visit those sites pretty often--but I don't quite understand you last point.
I wanted to add, that I must be on the opposite side of the spectrum on sites and blogs. Huffington Post is a site I visit daily, and I watch The Daily Show on a regular basis, but I only listen to Rush, Sean, Beck about an hour or so a week (It doesn't help they're on when I'm working). I watch Fox news about a few hours a month to check in on the opposing view. I check CNN throughout the day.
During the Bush era I occasionally heard Rush and Sean rake DeLay/Frist/Bush over the coals, but it was far and few between. When a Democrat co-authored an offending bill, inevitably it was the Democrat that got 40 minutes of bashing compared to the GOP leadership's 10 minutes. The exception being McCain who they hated until he became the nominee.
I'm willing to concede they were probably tougher on the Bush/Frist/DeLay crowd than I saw because I didn't visit very regularly.