Looking at the "most read articles" list, there may be one or two news articles in it at a given time, but there are usually a few snarky op-eds (Dowd or Krugman) and at least a few human interest stories.
The standard for many of the non hard news stories seems to be to weave a story one quote at a time. So, for example, a story about the economic downturn might quote one person who lost a job saying "things have been really hard for the past few months" and then draw some grand conclusions without any quotes from legitimate experts, etc.
This is fine when it's a story about some human interest topic, but I imagine any serious journalist would never even want to write such articles.
The problem for traditional news organizations is that those are the articles people want, not some arcane investigative story.
For an example of this, compare "Most Read" to "Most Blogged" articles. The bloggers are typically focusing on the real news at any given time (a small handful of stories) and are less interested in the popular stuff (which is what they themselves are competing with)...
This is also why most papers run so many AP stories -- doing real journalism is much harder than just whipping up a quick story with a few loose quotes, etc.