I love this one from David Weinberger...
"So, from my point of view, it’s not simply that the blogosphere got so big that it burst. First, the overall media landscape does look more like the old landscape than the early blogosphere did, but at the more local level – where local refers to interests – the shape and values of the old blogosphere are often maintained. Second, the characteristics and values of the blogosphere have spread beyond bloggers, shaping our expectations of the online world and even some of the offline world."
If you've been blogging for more than a decade it's a great read: