What is mainstream media anyway?

Nick Carr:

"Almost all of the popular blogs today are commercial ventures with
teams of writers, aggressive ad-sales operations, bloated sites, and
strategies of self-linking. Some are good, some are boring, but to
argue that they're part of a "blogosphere" that is distinguishable from
the "mainstream media" seems more and more like an act of nostalgia, if
not self-delusion."

I think Nick is both wrong and right here. The "top blogs" ARE mainstream media. But what people often forget is that mainstream media is mainstream for a reason: because the techniques and topics they cover are popular. So it's no surprise that the same techniques and topics emerge in the most popular blogs.